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Finding the Fourth Proportional to 63,168.76, 87,172.91 and 34,874.45

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Solution

The fourth proportional to 63,168.76, 87,172.91 and 34,874.45 is: 48,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,168.76 : 87,172.91 = 34,874.45 : x
  2. Step 2: Convert to fraction form
    63,168.76/87,172.91 = 34,874.45/x
  3. Step 3: Cross multiply
    63,168.76x = 87,172.91 × 34,874.45
  4. Step 4: Simplify right side
    63,168.76x = 3,040,107,138.59
  5. Step 5: Solve for x
    x = 3,040,107,138.59/63,168.76
  6. Step 6: Final answer
    x = 48,126.75

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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.