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Finding the Fourth Proportional to 55,068, 82,601.73 and 15,625.19

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Solution

The fourth proportional to 55,068, 82,601.73 and 15,625.19 is: 23,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,068 : 82,601.73 = 15,625.19 : x
  2. Step 2: Convert to fraction form
    55,068/82,601.73 = 15,625.19/x
  3. Step 3: Cross multiply
    55,068x = 82,601.73 × 15,625.19
  4. Step 4: Simplify right side
    55,068x = 1,290,667,312.57
  5. Step 5: Solve for x
    x = 1,290,667,312.57/55,068
  6. Step 6: Final answer
    x = 23,437.70

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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.