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Finding the Fourth Proportional to 21,900.52, 32,831.28 and 8,046.28

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Solution

The fourth proportional to 21,900.52, 32,831.28 and 8,046.28 is: 12,062.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,900.52 : 32,831.28 = 8,046.28 : x
  2. Step 2: Convert to fraction form
    21,900.52/32,831.28 = 8,046.28/x
  3. Step 3: Cross multiply
    21,900.52x = 32,831.28 × 8,046.28
  4. Step 4: Simplify right side
    21,900.52x = 264,169,671.64
  5. Step 5: Solve for x
    x = 264,169,671.64/21,900.52
  6. Step 6: Final answer
    x = 12,062.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.