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Finding the Fourth Proportional to 8,651,141.20, 12,976,711.80 and 2,262,039.40

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Solution

The fourth proportional to 8,651,141.20, 12,976,711.80 and 2,262,039.40 is: 3,393,059.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651,141.20 : 12,976,711.80 = 2,262,039.40 : x
  2. Step 2: Convert to fraction form
    8,651,141.20/12,976,711.80 = 2,262,039.40/x
  3. Step 3: Cross multiply
    8,651,141.20x = 12,976,711.80 × 2,262,039.40
  4. Step 4: Simplify right side
    8,651,141.20x = 29,353,833,374,044.92
  5. Step 5: Solve for x
    x = 29,353,833,374,044.92/8,651,141.20
  6. Step 6: Final answer
    x = 3,393,059.10

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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.