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Finding the Fourth Proportional to 22,831.63, 31,449.04 and 16,105.43

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Solution

The fourth proportional to 22,831.63, 31,449.04 and 16,105.43 is: 22,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,831.63 : 31,449.04 = 16,105.43 : x
  2. Step 2: Convert to fraction form
    22,831.63/31,449.04 = 16,105.43/x
  3. Step 3: Cross multiply
    22,831.63x = 31,449.04 × 16,105.43
  4. Step 4: Simplify right side
    22,831.63x = 506,500,350.65
  5. Step 5: Solve for x
    x = 506,500,350.65/22,831.63
  6. Step 6: Final answer
    x = 22,184.15

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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.