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Finding the Fourth Proportional to 21,963.99, 32,945.70 and 5,324.17

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Solution

The fourth proportional to 21,963.99, 32,945.70 and 5,324.17 is: 7,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.99 : 32,945.70 = 5,324.17 : x
  2. Step 2: Convert to fraction form
    21,963.99/32,945.70 = 5,324.17/x
  3. Step 3: Cross multiply
    21,963.99x = 32,945.70 × 5,324.17
  4. Step 4: Simplify right side
    21,963.99x = 175,408,425.20
  5. Step 5: Solve for x
    x = 175,408,425.20/21,963.99
  6. Step 6: Final answer
    x = 7,986.18

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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.