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Finding the Fourth Proportional to 10,369,862.70, 15,554,794.05 and 8,951,520.30

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Solution

The fourth proportional to 10,369,862.70, 15,554,794.05 and 8,951,520.30 is: 13,427,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369,862.70 : 15,554,794.05 = 8,951,520.30 : x
  2. Step 2: Convert to fraction form
    10,369,862.70/15,554,794.05 = 8,951,520.30/x
  3. Step 3: Cross multiply
    10,369,862.70x = 15,554,794.05 × 8,951,520.30
  4. Step 4: Simplify right side
    10,369,862.70x = 139,239,054,700,894.23
  5. Step 5: Solve for x
    x = 139,239,054,700,894.23/10,369,862.70
  6. Step 6: Final answer
    x = 13,427,280.45

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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.