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Finding the Fourth Proportional to 21,906.88, 32,883.72 and 9,433.08

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Solution

The fourth proportional to 21,906.88, 32,883.72 and 9,433.08 is: 14,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.88 : 32,883.72 = 9,433.08 : x
  2. Step 2: Convert to fraction form
    21,906.88/32,883.72 = 9,433.08/x
  3. Step 3: Cross multiply
    21,906.88x = 32,883.72 × 9,433.08
  4. Step 4: Simplify right side
    21,906.88x = 310,194,761.46
  5. Step 5: Solve for x
    x = 310,194,761.46/21,906.88
  6. Step 6: Final answer
    x = 14,159.70

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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.