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Finding the Fourth Proportional to 63,422.60, 87,526.04 and 35,128.22

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Solution

The fourth proportional to 63,422.60, 87,526.04 and 35,128.22 is: 48,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,422.60 : 87,526.04 = 35,128.22 : x
  2. Step 2: Convert to fraction form
    63,422.60/87,526.04 = 35,128.22/x
  3. Step 3: Cross multiply
    63,422.60x = 87,526.04 × 35,128.22
  4. Step 4: Simplify right side
    63,422.60x = 3,074,633,375.58
  5. Step 5: Solve for x
    x = 3,074,633,375.58/63,422.60
  6. Step 6: Final answer
    x = 48,478.52

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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.