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Finding the Fourth Proportional to 55,647.52, 83,471.28 and 14,091.28

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Solution

The fourth proportional to 55,647.52, 83,471.28 and 14,091.28 is: 21,136.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,647.52 : 83,471.28 = 14,091.28 : x
  2. Step 2: Convert to fraction form
    55,647.52/83,471.28 = 14,091.28/x
  3. Step 3: Cross multiply
    55,647.52x = 83,471.28 × 14,091.28
  4. Step 4: Simplify right side
    55,647.52x = 1,176,217,178.44
  5. Step 5: Solve for x
    x = 1,176,217,178.44/55,647.52
  6. Step 6: Final answer
    x = 21,136.92

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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.