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Finding the Fourth Proportional to 9,333,998.80, 14,000,998.20 and 7,739,675.80

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Solution

The fourth proportional to 9,333,998.80, 14,000,998.20 and 7,739,675.80 is: 11,609,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333,998.80 : 14,000,998.20 = 7,739,675.80 : x
  2. Step 2: Convert to fraction form
    9,333,998.80/14,000,998.20 = 7,739,675.80/x
  3. Step 3: Cross multiply
    9,333,998.80x = 14,000,998.20 × 7,739,675.80
  4. Step 4: Simplify right side
    9,333,998.80x = 108,363,186,944,383.55
  5. Step 5: Solve for x
    x = 108,363,186,944,383.55/9,333,998.80
  6. Step 6: Final answer
    x = 11,609,513.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.