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Finding the Fourth Proportional to 37,761.40, 56,648.90 and 15,562.64

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Solution

The fourth proportional to 37,761.40, 56,648.90 and 15,562.64 is: 23,346.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,761.40 : 56,648.90 = 15,562.64 : x
  2. Step 2: Convert to fraction form
    37,761.40/56,648.90 = 15,562.64/x
  3. Step 3: Cross multiply
    37,761.40x = 56,648.90 × 15,562.64
  4. Step 4: Simplify right side
    37,761.40x = 881,606,437.10
  5. Step 5: Solve for x
    x = 881,606,437.10/37,761.40
  6. Step 6: Final answer
    x = 23,346.76

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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.