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Finding the Fourth Proportional to 64,473.92, 88,951.20 and 42,130.88

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Solution

The fourth proportional to 64,473.92, 88,951.20 and 42,130.88 is: 58,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,473.92 : 88,951.20 = 42,130.88 : x
  2. Step 2: Convert to fraction form
    64,473.92/88,951.20 = 42,130.88/x
  3. Step 3: Cross multiply
    64,473.92x = 88,951.20 × 42,130.88
  4. Step 4: Simplify right side
    64,473.92x = 3,747,592,333.06
  5. Step 5: Solve for x
    x = 3,747,592,333.06/64,473.92
  6. Step 6: Final answer
    x = 58,125.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.