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Finding the Fourth Proportional to 57,722.60, 86,541.66 and 18,257.64

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Solution

The fourth proportional to 57,722.60, 86,541.66 and 18,257.64 is: 27,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.60 : 86,541.66 = 18,257.64 : x
  2. Step 2: Convert to fraction form
    57,722.60/86,541.66 = 18,257.64/x
  3. Step 3: Cross multiply
    57,722.60x = 86,541.66 × 18,257.64
  4. Step 4: Simplify right side
    57,722.60x = 1,580,046,473.28
  5. Step 5: Solve for x
    x = 1,580,046,473.28/57,722.60
  6. Step 6: Final answer
    x = 27,373.10

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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.