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Finding the Fourth Proportional to 58,722.60, 88,080.75 and 20,769.24

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Solution

The fourth proportional to 58,722.60, 88,080.75 and 20,769.24 is: 31,152.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,722.60 : 88,080.75 = 20,769.24 : x
  2. Step 2: Convert to fraction form
    58,722.60/88,080.75 = 20,769.24/x
  3. Step 3: Cross multiply
    58,722.60x = 88,080.75 × 20,769.24
  4. Step 4: Simplify right side
    58,722.60x = 1,829,370,236.13
  5. Step 5: Solve for x
    x = 1,829,370,236.13/58,722.60
  6. Step 6: Final answer
    x = 31,152.75

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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.