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Finding the Fourth Proportional to 55,992.85, 77,264.53 and 34,479.15

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Solution

The fourth proportional to 55,992.85, 77,264.53 and 34,479.15 is: 47,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,992.85 : 77,264.53 = 34,479.15 : x
  2. Step 2: Convert to fraction form
    55,992.85/77,264.53 = 34,479.15/x
  3. Step 3: Cross multiply
    55,992.85x = 77,264.53 × 34,479.15
  4. Step 4: Simplify right side
    55,992.85x = 2,664,015,572.17
  5. Step 5: Solve for x
    x = 2,664,015,572.17/55,992.85
  6. Step 6: Final answer
    x = 47,577.78

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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.