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Finding the Fourth Proportional to 47,373.88, 71,055.16 and 36,854.40

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Solution

The fourth proportional to 47,373.88, 71,055.16 and 36,854.40 is: 55,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,373.88 : 71,055.16 = 36,854.40 : x
  2. Step 2: Convert to fraction form
    47,373.88/71,055.16 = 36,854.40/x
  3. Step 3: Cross multiply
    47,373.88x = 71,055.16 × 36,854.40
  4. Step 4: Simplify right side
    47,373.88x = 2,618,695,288.70
  5. Step 5: Solve for x
    x = 2,618,695,288.70/47,373.88
  6. Step 6: Final answer
    x = 55,277.20

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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.