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Finding the Fourth Proportional to 63,713.80, 87,937.24 and 42,203.80

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Solution

The fourth proportional to 63,713.80, 87,937.24 and 42,203.80 is: 58,249.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,713.80 : 87,937.24 = 42,203.80 : x
  2. Step 2: Convert to fraction form
    63,713.80/87,937.24 = 42,203.80/x
  3. Step 3: Cross multiply
    63,713.80x = 87,937.24 × 42,203.80
  4. Step 4: Simplify right side
    63,713.80x = 3,711,285,689.51
  5. Step 5: Solve for x
    x = 3,711,285,689.51/63,713.80
  6. Step 6: Final answer
    x = 58,249.32

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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.