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Finding the Fourth Proportional to 56,453.76, 77,909.64 and 32,581.97

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Solution

The fourth proportional to 56,453.76, 77,909.64 and 32,581.97 is: 44,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,453.76 : 77,909.64 = 32,581.97 : x
  2. Step 2: Convert to fraction form
    56,453.76/77,909.64 = 32,581.97/x
  3. Step 3: Cross multiply
    56,453.76x = 77,909.64 × 32,581.97
  4. Step 4: Simplify right side
    56,453.76x = 2,538,449,479.70
  5. Step 5: Solve for x
    x = 2,538,449,479.70/56,453.76
  6. Step 6: Final answer
    x = 44,965.11

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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.