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Finding the Fourth Proportional to 34,442.70, 51,651.90 and 15,731.70

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Solution

The fourth proportional to 34,442.70, 51,651.90 and 15,731.70 is: 23,592.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,442.70 : 51,651.90 = 15,731.70 : x
  2. Step 2: Convert to fraction form
    34,442.70/51,651.90 = 15,731.70/x
  3. Step 3: Cross multiply
    34,442.70x = 51,651.90 × 15,731.70
  4. Step 4: Simplify right side
    34,442.70x = 812,572,195.23
  5. Step 5: Solve for x
    x = 812,572,195.23/34,442.70
  6. Step 6: Final answer
    x = 23,592.00

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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.