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Finding the Fourth Proportional to 8,314,138.80, 12,472,957.80 and 2,634,937.20

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Solution

The fourth proportional to 8,314,138.80, 12,472,957.80 and 2,634,937.20 is: 3,952,960.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314,138.80 : 12,472,957.80 = 2,634,937.20 : x
  2. Step 2: Convert to fraction form
    8,314,138.80/12,472,957.80 = 2,634,937.20/x
  3. Step 3: Cross multiply
    8,314,138.80x = 12,472,957.80 × 2,634,937.20
  4. Step 4: Simplify right side
    8,314,138.80x = 32,865,460,501,250.16
  5. Step 5: Solve for x
    x = 32,865,460,501,250.16/8,314,138.80
  6. Step 6: Final answer
    x = 3,952,960.29

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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.