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Finding the Fourth Proportional to 10,608,613.40, 15,912,920.10 and 8,482,849.40

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Solution

The fourth proportional to 10,608,613.40, 15,912,920.10 and 8,482,849.40 is: 12,724,274.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,608,613.40 : 15,912,920.10 = 8,482,849.40 : x
  2. Step 2: Convert to fraction form
    10,608,613.40/15,912,920.10 = 8,482,849.40/x
  3. Step 3: Cross multiply
    10,608,613.40x = 15,912,920.10 × 8,482,849.40
  4. Step 4: Simplify right side
    10,608,613.40x = 134,986,904,722,532.94
  5. Step 5: Solve for x
    x = 134,986,904,722,532.94/10,608,613.40
  6. Step 6: Final answer
    x = 12,724,274.10

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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.