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Finding the Fourth Proportional to 56,322.62, 77,724.99 and 30,481.11

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Solution

The fourth proportional to 56,322.62, 77,724.99 and 30,481.11 is: 42,063.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,322.62 : 77,724.99 = 30,481.11 : x
  2. Step 2: Convert to fraction form
    56,322.62/77,724.99 = 30,481.11/x
  3. Step 3: Cross multiply
    56,322.62x = 77,724.99 × 30,481.11
  4. Step 4: Simplify right side
    56,322.62x = 2,369,144,375.71
  5. Step 5: Solve for x
    x = 2,369,144,375.71/56,322.62
  6. Step 6: Final answer
    x = 42,063.82

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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.