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Finding the Fourth Proportional to 21,525.76, 32,287.75 and 7,488.97

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Solution

The fourth proportional to 21,525.76, 32,287.75 and 7,488.97 is: 11,233.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.76 : 32,287.75 = 7,488.97 : x
  2. Step 2: Convert to fraction form
    21,525.76/32,287.75 = 7,488.97/x
  3. Step 3: Cross multiply
    21,525.76x = 32,287.75 × 7,488.97
  4. Step 4: Simplify right side
    21,525.76x = 241,801,891.68
  5. Step 5: Solve for x
    x = 241,801,891.68/21,525.76
  6. Step 6: Final answer
    x = 11,233.14

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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.