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Finding the Fourth Proportional to 63,933.92, 88,187.64 and 42,423.20

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Solution

The fourth proportional to 63,933.92, 88,187.64 and 42,423.20 is: 58,516.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,933.92 : 88,187.64 = 42,423.20 : x
  2. Step 2: Convert to fraction form
    63,933.92/88,187.64 = 42,423.20/x
  3. Step 3: Cross multiply
    63,933.92x = 88,187.64 × 42,423.20
  4. Step 4: Simplify right side
    63,933.92x = 3,741,201,889.25
  5. Step 5: Solve for x
    x = 3,741,201,889.25/63,933.92
  6. Step 6: Final answer
    x = 58,516.70

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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.