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Finding the Fourth Proportional to 60,977.14, 91,479.15 and 18,280.86

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Solution

The fourth proportional to 60,977.14, 91,479.15 and 18,280.86 is: 27,425.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,977.14 : 91,479.15 = 18,280.86 : x
  2. Step 2: Convert to fraction form
    60,977.14/91,479.15 = 18,280.86/x
  3. Step 3: Cross multiply
    60,977.14x = 91,479.15 × 18,280.86
  4. Step 4: Simplify right side
    60,977.14x = 1,672,317,911.46
  5. Step 5: Solve for x
    x = 1,672,317,911.46/60,977.14
  6. Step 6: Final answer
    x = 27,425.33

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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.