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Finding the Fourth Proportional to 7,193,505.52, 9,926,920.19 and 3,930,250.01

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Solution

The fourth proportional to 7,193,505.52, 9,926,920.19 and 3,930,250.01 is: 5,423,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193,505.52 : 9,926,920.19 = 3,930,250.01 : x
  2. Step 2: Convert to fraction form
    7,193,505.52/9,926,920.19 = 3,930,250.01/x
  3. Step 3: Cross multiply
    7,193,505.52x = 9,926,920.19 × 3,930,250.01
  4. Step 4: Simplify right side
    7,193,505.52x = 39,015,278,156,365.45
  5. Step 5: Solve for x
    x = 39,015,278,156,365.45/7,193,505.52
  6. Step 6: Final answer
    x = 5,423,680.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.