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Finding the Fourth Proportional to 63,626.87, 87,813.14 and 38,476.31

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Solution

The fourth proportional to 63,626.87, 87,813.14 and 38,476.31 is: 53,102.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,626.87 : 87,813.14 = 38,476.31 : x
  2. Step 2: Convert to fraction form
    63,626.87/87,813.14 = 38,476.31/x
  3. Step 3: Cross multiply
    63,626.87x = 87,813.14 × 38,476.31
  4. Step 4: Simplify right side
    63,626.87x = 3,378,725,596.71
  5. Step 5: Solve for x
    x = 3,378,725,596.71/63,626.87
  6. Step 6: Final answer
    x = 53,102.18

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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.