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Finding the Fourth Proportional to 59,938.64, 89,900.28 and 18,382.16

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Solution

The fourth proportional to 59,938.64, 89,900.28 and 18,382.16 is: 27,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,938.64 : 89,900.28 = 18,382.16 : x
  2. Step 2: Convert to fraction form
    59,938.64/89,900.28 = 18,382.16/x
  3. Step 3: Cross multiply
    59,938.64x = 89,900.28 × 18,382.16
  4. Step 4: Simplify right side
    59,938.64x = 1,652,561,331.00
  5. Step 5: Solve for x
    x = 1,652,561,331.00/59,938.64
  6. Step 6: Final answer
    x = 27,570.88

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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.