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Finding the Fourth Proportional to 52,985.60, 79,348.80 and 25,251.20

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Solution

The fourth proportional to 52,985.60, 79,348.80 and 25,251.20 is: 37,815.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,985.60 : 79,348.80 = 25,251.20 : x
  2. Step 2: Convert to fraction form
    52,985.60/79,348.80 = 25,251.20/x
  3. Step 3: Cross multiply
    52,985.60x = 79,348.80 × 25,251.20
  4. Step 4: Simplify right side
    52,985.60x = 2,003,652,418.56
  5. Step 5: Solve for x
    x = 2,003,652,418.56/52,985.60
  6. Step 6: Final answer
    x = 37,815.04

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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.