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Finding the Fourth Proportional to 56,930.77, 85,395.97 and 15,377.77

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Solution

The fourth proportional to 56,930.77, 85,395.97 and 15,377.77 is: 23,066.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,930.77 : 85,395.97 = 15,377.77 : x
  2. Step 2: Convert to fraction form
    56,930.77/85,395.97 = 15,377.77/x
  3. Step 3: Cross multiply
    56,930.77x = 85,395.97 × 15,377.77
  4. Step 4: Simplify right side
    56,930.77x = 1,313,199,585.59
  5. Step 5: Solve for x
    x = 1,313,199,585.59/56,930.77
  6. Step 6: Final answer
    x = 23,066.61

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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.