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Finding the Fourth Proportional to 21,571.26, 32,356.90 and 5,988.90

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Solution

The fourth proportional to 21,571.26, 32,356.90 and 5,988.90 is: 8,983.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.26 : 32,356.90 = 5,988.90 : x
  2. Step 2: Convert to fraction form
    21,571.26/32,356.90 = 5,988.90/x
  3. Step 3: Cross multiply
    21,571.26x = 32,356.90 × 5,988.90
  4. Step 4: Simplify right side
    21,571.26x = 193,782,238.41
  5. Step 5: Solve for x
    x = 193,782,238.41/21,571.26
  6. Step 6: Final answer
    x = 8,983.35

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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.