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Finding the Fourth Proportional to 59,939.64, 89,901.78 and 18,383.16

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Solution

The fourth proportional to 59,939.64, 89,901.78 and 18,383.16 is: 27,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,939.64 : 89,901.78 = 18,383.16 : x
  2. Step 2: Convert to fraction form
    59,939.64/89,901.78 = 18,383.16/x
  3. Step 3: Cross multiply
    59,939.64x = 89,901.78 × 18,383.16
  4. Step 4: Simplify right side
    59,939.64x = 1,652,678,806.02
  5. Step 5: Solve for x
    x = 1,652,678,806.02/59,939.64
  6. Step 6: Final answer
    x = 27,572.38

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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.