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Finding the Fourth Proportional to 63,669.52, 87,866.70 and 35,375.20

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Solution

The fourth proportional to 63,669.52, 87,866.70 and 35,375.20 is: 48,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,669.52 : 87,866.70 = 35,375.20 : x
  2. Step 2: Convert to fraction form
    63,669.52/87,866.70 = 35,375.20/x
  3. Step 3: Cross multiply
    63,669.52x = 87,866.70 × 35,375.20
  4. Step 4: Simplify right side
    63,669.52x = 3,108,302,085.84
  5. Step 5: Solve for x
    x = 3,108,302,085.84/63,669.52
  6. Step 6: Final answer
    x = 48,819.31

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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.