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Finding the Fourth Proportional to 19,913,793.30, 29,870,689.95 and 19,913,793.30

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Solution

The fourth proportional to 19,913,793.30, 29,870,689.95 and 19,913,793.30 is: 29,870,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913,793.30 : 29,870,689.95 = 19,913,793.30 : x
  2. Step 2: Convert to fraction form
    19,913,793.30/29,870,689.95 = 19,913,793.30/x
  3. Step 3: Cross multiply
    19,913,793.30x = 29,870,689.95 × 19,913,793.30
  4. Step 4: Simplify right side
    19,913,793.30x = 594,838,745,392,687.38
  5. Step 5: Solve for x
    x = 594,838,745,392,687.38/19,913,793.30
  6. Step 6: Final answer
    x = 29,870,689.95

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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.