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Finding the Fourth Proportional to 57,471.50, 86,218.18 and 18,018.02

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Solution

The fourth proportional to 57,471.50, 86,218.18 and 18,018.02 is: 27,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,471.50 : 86,218.18 = 18,018.02 : x
  2. Step 2: Convert to fraction form
    57,471.50/86,218.18 = 18,018.02/x
  3. Step 3: Cross multiply
    57,471.50x = 86,218.18 × 18,018.02
  4. Step 4: Simplify right side
    57,471.50x = 1,553,480,415.47
  5. Step 5: Solve for x
    x = 1,553,480,415.47/57,471.50
  6. Step 6: Final answer
    x = 27,030.45

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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.