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Finding the Fourth Proportional to 37,472.40, 51,711.03 and 20,475.90

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Solution

The fourth proportional to 37,472.40, 51,711.03 and 20,475.90 is: 28,256.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,472.40 : 51,711.03 = 20,475.90 : x
  2. Step 2: Convert to fraction form
    37,472.40/51,711.03 = 20,475.90/x
  3. Step 3: Cross multiply
    37,472.40x = 51,711.03 × 20,475.90
  4. Step 4: Simplify right side
    37,472.40x = 1,058,829,879.18
  5. Step 5: Solve for x
    x = 1,058,829,879.18/37,472.40
  6. Step 6: Final answer
    x = 28,256.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.