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Finding the Fourth Proportional to 57,794.64, 86,691.12 and 18,351.18

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Solution

The fourth proportional to 57,794.64, 86,691.12 and 18,351.18 is: 27,526.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,794.64 : 86,691.12 = 18,351.18 : x
  2. Step 2: Convert to fraction form
    57,794.64/86,691.12 = 18,351.18/x
  3. Step 3: Cross multiply
    57,794.64x = 86,691.12 × 18,351.18
  4. Step 4: Simplify right side
    57,794.64x = 1,590,884,347.52
  5. Step 5: Solve for x
    x = 1,590,884,347.52/57,794.64
  6. Step 6: Final answer
    x = 27,526.50

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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.