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Finding the Fourth Proportional to 8,356,239.02, 12,534,358.54 and 5,515,686.88

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Solution

The fourth proportional to 8,356,239.02, 12,534,358.54 and 5,515,686.88 is: 8,273,530.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,356,239.02 : 12,534,358.54 = 5,515,686.88 : x
  2. Step 2: Convert to fraction form
    8,356,239.02/12,534,358.54 = 5,515,686.88/x
  3. Step 3: Cross multiply
    8,356,239.02x = 12,534,358.54 × 5,515,686.88
  4. Step 4: Simplify right side
    8,356,239.02x = 69,135,596,948,293.95
  5. Step 5: Solve for x
    x = 69,135,596,948,293.95/8,356,239.02
  6. Step 6: Final answer
    x = 8,273,530.33

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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.