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Finding the Fourth Proportional to 55,593.72, 83,390.82 and 14,040.72

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Solution

The fourth proportional to 55,593.72, 83,390.82 and 14,040.72 is: 21,061.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,593.72 : 83,390.82 = 14,040.72 : x
  2. Step 2: Convert to fraction form
    55,593.72/83,390.82 = 14,040.72/x
  3. Step 3: Cross multiply
    55,593.72x = 83,390.82 × 14,040.72
  4. Step 4: Simplify right side
    55,593.72x = 1,170,867,154.19
  5. Step 5: Solve for x
    x = 1,170,867,154.19/55,593.72
  6. Step 6: Final answer
    x = 21,061.14

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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.