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Finding the Fourth Proportional to 18,825,824.34, 25,978,545.45 and 10,565,115.12

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Solution

The fourth proportional to 18,825,824.34, 25,978,545.45 and 10,565,115.12 is: 14,579,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825,824.34 : 25,978,545.45 = 10,565,115.12 : x
  2. Step 2: Convert to fraction form
    18,825,824.34/25,978,545.45 = 10,565,115.12/x
  3. Step 3: Cross multiply
    18,825,824.34x = 25,978,545.45 × 10,565,115.12
  4. Step 4: Simplify right side
    18,825,824.34x = 274,466,323,329,402.19
  5. Step 5: Solve for x
    x = 274,466,323,329,402.19/18,825,824.34
  6. Step 6: Final answer
    x = 14,579,245.95

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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.