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Finding the Fourth Proportional to 16,486.54, 22,761.15 and 10,831.17

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Solution

The fourth proportional to 16,486.54, 22,761.15 and 10,831.17 is: 14,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.54 : 22,761.15 = 10,831.17 : x
  2. Step 2: Convert to fraction form
    16,486.54/22,761.15 = 10,831.17/x
  3. Step 3: Cross multiply
    16,486.54x = 22,761.15 × 10,831.17
  4. Step 4: Simplify right side
    16,486.54x = 246,529,862.68
  5. Step 5: Solve for x
    x = 246,529,862.68/16,486.54
  6. Step 6: Final answer
    x = 14,953.40

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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.