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Finding the Fourth Proportional to 57,492.56, 86,253.18 and 20,053.16

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Solution

The fourth proportional to 57,492.56, 86,253.18 and 20,053.16 is: 30,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,492.56 : 86,253.18 = 20,053.16 : x
  2. Step 2: Convert to fraction form
    57,492.56/86,253.18 = 20,053.16/x
  3. Step 3: Cross multiply
    57,492.56x = 86,253.18 × 20,053.16
  4. Step 4: Simplify right side
    57,492.56x = 1,729,649,034.68
  5. Step 5: Solve for x
    x = 1,729,649,034.68/57,492.56
  6. Step 6: Final answer
    x = 30,084.75

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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.