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Finding the Fourth Proportional to 60,756.53, 91,134.54 and 16,387.77

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Solution

The fourth proportional to 60,756.53, 91,134.54 and 16,387.77 is: 24,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,756.53 : 91,134.54 = 16,387.77 : x
  2. Step 2: Convert to fraction form
    60,756.53/91,134.54 = 16,387.77/x
  3. Step 3: Cross multiply
    60,756.53x = 91,134.54 × 16,387.77
  4. Step 4: Simplify right side
    60,756.53x = 1,493,491,880.58
  5. Step 5: Solve for x
    x = 1,493,491,880.58/60,756.53
  6. Step 6: Final answer
    x = 24,581.59

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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.