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Finding the Fourth Proportional to 63,507.88, 87,628.26 and 38,358.76

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Solution

The fourth proportional to 63,507.88, 87,628.26 and 38,358.76 is: 52,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,507.88 : 87,628.26 = 38,358.76 : x
  2. Step 2: Convert to fraction form
    63,507.88/87,628.26 = 38,358.76/x
  3. Step 3: Cross multiply
    63,507.88x = 87,628.26 × 38,358.76
  4. Step 4: Simplify right side
    63,507.88x = 3,361,311,394.56
  5. Step 5: Solve for x
    x = 3,361,311,394.56/63,507.88
  6. Step 6: Final answer
    x = 52,927.47

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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.