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Finding the Fourth Proportional to 63,281.88, 87,330.82 and 34,989.38

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Solution

The fourth proportional to 63,281.88, 87,330.82 and 34,989.38 is: 48,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,281.88 : 87,330.82 = 34,989.38 : x
  2. Step 2: Convert to fraction form
    63,281.88/87,330.82 = 34,989.38/x
  3. Step 3: Cross multiply
    63,281.88x = 87,330.82 × 34,989.38
  4. Step 4: Simplify right side
    63,281.88x = 3,055,651,246.69
  5. Step 5: Solve for x
    x = 3,055,651,246.69/63,281.88
  6. Step 6: Final answer
    x = 48,286.35

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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.