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Finding the Fourth Proportional to 69,052.88, 95,281.82 and 38,836.40

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Solution

The fourth proportional to 69,052.88, 95,281.82 and 38,836.40 is: 53,587.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,052.88 : 95,281.82 = 38,836.40 : x
  2. Step 2: Convert to fraction form
    69,052.88/95,281.82 = 38,836.40/x
  3. Step 3: Cross multiply
    69,052.88x = 95,281.82 × 38,836.40
  4. Step 4: Simplify right side
    69,052.88x = 3,700,402,680.07
  5. Step 5: Solve for x
    x = 3,700,402,680.07/69,052.88
  6. Step 6: Final answer
    x = 53,587.96

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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.