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Finding the Fourth Proportional to 21,617.25, 32,425.88 and 5,201.25

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Solution

The fourth proportional to 21,617.25, 32,425.88 and 5,201.25 is: 7,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.25 : 32,425.88 = 5,201.25 : x
  2. Step 2: Convert to fraction form
    21,617.25/32,425.88 = 5,201.25/x
  3. Step 3: Cross multiply
    21,617.25x = 32,425.88 × 5,201.25
  4. Step 4: Simplify right side
    21,617.25x = 168,655,082.34
  5. Step 5: Solve for x
    x = 168,655,082.34/21,617.25
  6. Step 6: Final answer
    x = 7,801.88

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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.