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Finding the Fourth Proportional to 12,581,232.20, 18,843,854.70 and 10,341,744.20

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Solution

The fourth proportional to 12,581,232.20, 18,843,854.70 and 10,341,744.20 is: 15,489,605.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581,232.20 : 18,843,854.70 = 10,341,744.20 : x
  2. Step 2: Convert to fraction form
    12,581,232.20/18,843,854.70 = 10,341,744.20/x
  3. Step 3: Cross multiply
    12,581,232.20x = 18,843,854.70 × 10,341,744.20
  4. Step 4: Simplify right side
    12,581,232.20x = 194,878,325,049,367.72
  5. Step 5: Solve for x
    x = 194,878,325,049,367.72/12,581,232.20
  6. Step 6: Final answer
    x = 15,489,605.62

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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.