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Finding the Fourth Proportional to 21,601.92, 32,403.11 and 6,019.55

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Solution

The fourth proportional to 21,601.92, 32,403.11 and 6,019.55 is: 9,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.92 : 32,403.11 = 6,019.55 : x
  2. Step 2: Convert to fraction form
    21,601.92/32,403.11 = 6,019.55/x
  3. Step 3: Cross multiply
    21,601.92x = 32,403.11 × 6,019.55
  4. Step 4: Simplify right side
    21,601.92x = 195,051,948.69
  5. Step 5: Solve for x
    x = 195,051,948.69/21,601.92
  6. Step 6: Final answer
    x = 9,029.38

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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.