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Finding the Fourth Proportional to 10,963.73, 15,129.95 and 5,927.95

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Solution

The fourth proportional to 10,963.73, 15,129.95 and 5,927.95 is: 8,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.73 : 15,129.95 = 5,927.95 : x
  2. Step 2: Convert to fraction form
    10,963.73/15,129.95 = 5,927.95/x
  3. Step 3: Cross multiply
    10,963.73x = 15,129.95 × 5,927.95
  4. Step 4: Simplify right side
    10,963.73x = 89,689,519.64
  5. Step 5: Solve for x
    x = 89,689,519.64/10,963.73
  6. Step 6: Final answer
    x = 8,180.57

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1.5x scale

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.