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Finding the Fourth Proportional to 63,895.55, 88,190.88 and 39,714.78

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Solution

The fourth proportional to 63,895.55, 88,190.88 and 39,714.78 is: 54,815.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,895.55 : 88,190.88 = 39,714.78 : x
  2. Step 2: Convert to fraction form
    63,895.55/88,190.88 = 39,714.78/x
  3. Step 3: Cross multiply
    63,895.55x = 88,190.88 × 39,714.78
  4. Step 4: Simplify right side
    63,895.55x = 3,502,481,215.42
  5. Step 5: Solve for x
    x = 3,502,481,215.42/63,895.55
  6. Step 6: Final answer
    x = 54,815.73

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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.