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Finding the Fourth Proportional to 63,709.80, 87,924.09 and 38,217.24

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Solution

The fourth proportional to 63,709.80, 87,924.09 and 38,217.24 is: 52,742.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,709.80 : 87,924.09 = 38,217.24 : x
  2. Step 2: Convert to fraction form
    63,709.80/87,924.09 = 38,217.24/x
  3. Step 3: Cross multiply
    63,709.80x = 87,924.09 × 38,217.24
  4. Step 4: Simplify right side
    63,709.80x = 3,360,216,049.31
  5. Step 5: Solve for x
    x = 3,360,216,049.31/63,709.80
  6. Step 6: Final answer
    x = 52,742.53

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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.