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Finding the Fourth Proportional to 21,572.74, 32,360.91 and 5,990.41

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Solution

The fourth proportional to 21,572.74, 32,360.91 and 5,990.41 is: 8,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.74 : 32,360.91 = 5,990.41 : x
  2. Step 2: Convert to fraction form
    21,572.74/32,360.91 = 5,990.41/x
  3. Step 3: Cross multiply
    21,572.74x = 32,360.91 × 5,990.41
  4. Step 4: Simplify right side
    21,572.74x = 193,855,118.87
  5. Step 5: Solve for x
    x = 193,855,118.87/21,572.74
  6. Step 6: Final answer
    x = 8,986.11

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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.