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Finding the Fourth Proportional to 16,001.34, 22,081.68 and 8,831.32

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Solution

The fourth proportional to 16,001.34, 22,081.68 and 8,831.32 is: 12,187.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,001.34 : 22,081.68 = 8,831.32 : x
  2. Step 2: Convert to fraction form
    16,001.34/22,081.68 = 8,831.32/x
  3. Step 3: Cross multiply
    16,001.34x = 22,081.68 × 8,831.32
  4. Step 4: Simplify right side
    16,001.34x = 195,010,382.22
  5. Step 5: Solve for x
    x = 195,010,382.22/16,001.34
  6. Step 6: Final answer
    x = 12,187.13

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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.