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Finding the Fourth Proportional to 63,556.50, 87,707.72 and 34,876.64

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Solution

The fourth proportional to 63,556.50, 87,707.72 and 34,876.64 is: 48,129.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,556.50 : 87,707.72 = 34,876.64 : x
  2. Step 2: Convert to fraction form
    63,556.50/87,707.72 = 34,876.64/x
  3. Step 3: Cross multiply
    63,556.50x = 87,707.72 × 34,876.64
  4. Step 4: Simplify right side
    63,556.50x = 3,058,949,962.74
  5. Step 5: Solve for x
    x = 3,058,949,962.74/63,556.50
  6. Step 6: Final answer
    x = 48,129.62

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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.