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Finding the Fourth Proportional to 53,125.20, 79,687.80 and 29,748.60

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Solution

The fourth proportional to 53,125.20, 79,687.80 and 29,748.60 is: 44,622.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,125.20 : 79,687.80 = 29,748.60 : x
  2. Step 2: Convert to fraction form
    53,125.20/79,687.80 = 29,748.60/x
  3. Step 3: Cross multiply
    53,125.20x = 79,687.80 × 29,748.60
  4. Step 4: Simplify right side
    53,125.20x = 2,370,600,487.08
  5. Step 5: Solve for x
    x = 2,370,600,487.08/53,125.20
  6. Step 6: Final answer
    x = 44,622.90

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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.