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Finding the Fourth Proportional to 21,596.52, 32,380.90 and 9,113.13

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Solution

The fourth proportional to 21,596.52, 32,380.90 and 9,113.13 is: 13,663.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,596.52 : 32,380.90 = 9,113.13 : x
  2. Step 2: Convert to fraction form
    21,596.52/32,380.90 = 9,113.13/x
  3. Step 3: Cross multiply
    21,596.52x = 32,380.90 × 9,113.13
  4. Step 4: Simplify right side
    21,596.52x = 295,091,351.22
  5. Step 5: Solve for x
    x = 295,091,351.22/21,596.52
  6. Step 6: Final answer
    x = 13,663.84

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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.