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Finding the Fourth Proportional to 15,165.72, 22,750.02 and 5,177.52

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Solution

The fourth proportional to 15,165.72, 22,750.02 and 5,177.52 is: 7,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,165.72 : 22,750.02 = 5,177.52 : x
  2. Step 2: Convert to fraction form
    15,165.72/22,750.02 = 5,177.52/x
  3. Step 3: Cross multiply
    15,165.72x = 22,750.02 × 5,177.52
  4. Step 4: Simplify right side
    15,165.72x = 117,788,683.55
  5. Step 5: Solve for x
    x = 117,788,683.55/15,165.72
  6. Step 6: Final answer
    x = 7,766.77

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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.