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Finding the Fourth Proportional to 63,034.65, 87,002.64 and 39,179.34

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Solution

The fourth proportional to 63,034.65, 87,002.64 and 39,179.34 is: 54,076.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,034.65 : 87,002.64 = 39,179.34 : x
  2. Step 2: Convert to fraction form
    63,034.65/87,002.64 = 39,179.34/x
  3. Step 3: Cross multiply
    63,034.65x = 87,002.64 × 39,179.34
  4. Step 4: Simplify right side
    63,034.65x = 3,408,706,013.46
  5. Step 5: Solve for x
    x = 3,408,706,013.46/63,034.65
  6. Step 6: Final answer
    x = 54,076.70

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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.