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Finding the Fourth Proportional to 57,805.52, 86,714.08 and 15,686.26

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Solution

The fourth proportional to 57,805.52, 86,714.08 and 15,686.26 is: 23,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,805.52 : 86,714.08 = 15,686.26 : x
  2. Step 2: Convert to fraction form
    57,805.52/86,714.08 = 15,686.26/x
  3. Step 3: Cross multiply
    57,805.52x = 86,714.08 × 15,686.26
  4. Step 4: Simplify right side
    57,805.52x = 1,360,219,348.54
  5. Step 5: Solve for x
    x = 1,360,219,348.54/57,805.52
  6. Step 6: Final answer
    x = 23,530.96

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1.5x scale

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.