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Finding the Fourth Proportional to 8,093,278.80, 12,139,918.20 and 8,046,039.60

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Solution

The fourth proportional to 8,093,278.80, 12,139,918.20 and 8,046,039.60 is: 12,069,059.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,093,278.80 : 12,139,918.20 = 8,046,039.60 : x
  2. Step 2: Convert to fraction form
    8,093,278.80/12,139,918.20 = 8,046,039.60/x
  3. Step 3: Cross multiply
    8,093,278.80x = 12,139,918.20 × 8,046,039.60
  4. Step 4: Simplify right side
    8,093,278.80x = 97,678,262,577,960.70
  5. Step 5: Solve for x
    x = 97,678,262,577,960.70/8,093,278.80
  6. Step 6: Final answer
    x = 12,069,059.40

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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.