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Finding the Fourth Proportional to 11,366.52, 15,687.94 and 6,398.52

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Solution

The fourth proportional to 11,366.52, 15,687.94 and 6,398.52 is: 8,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.52 : 15,687.94 = 6,398.52 : x
  2. Step 2: Convert to fraction form
    11,366.52/15,687.94 = 6,398.52/x
  3. Step 3: Cross multiply
    11,366.52x = 15,687.94 × 6,398.52
  4. Step 4: Simplify right side
    11,366.52x = 100,379,597.85
  5. Step 5: Solve for x
    x = 100,379,597.85/11,366.52
  6. Step 6: Final answer
    x = 8,831.16

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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.