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Finding the Fourth Proportional to 52,708.08, 79,080.48 and 31,660.08

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Solution

The fourth proportional to 52,708.08, 79,080.48 and 31,660.08 is: 47,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,708.08 : 79,080.48 = 31,660.08 : x
  2. Step 2: Convert to fraction form
    52,708.08/79,080.48 = 31,660.08/x
  3. Step 3: Cross multiply
    52,708.08x = 79,080.48 × 31,660.08
  4. Step 4: Simplify right side
    52,708.08x = 2,503,694,323.24
  5. Step 5: Solve for x
    x = 2,503,694,323.24/52,708.08
  6. Step 6: Final answer
    x = 47,501.15

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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.