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Finding the Fourth Proportional to 42,337.62, 63,709.74 and 34,894.80

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Solution

The fourth proportional to 42,337.62, 63,709.74 and 34,894.80 is: 52,509.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,337.62 : 63,709.74 = 34,894.80 : x
  2. Step 2: Convert to fraction form
    42,337.62/63,709.74 = 34,894.80/x
  3. Step 3: Cross multiply
    42,337.62x = 63,709.74 × 34,894.80
  4. Step 4: Simplify right side
    42,337.62x = 2,223,138,635.35
  5. Step 5: Solve for x
    x = 2,223,138,635.35/42,337.62
  6. Step 6: Final answer
    x = 52,509.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.