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Finding the Fourth Proportional to 25,721, 38,581.46 and 16,892.07

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Solution

The fourth proportional to 25,721, 38,581.46 and 16,892.07 is: 25,338.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721 : 38,581.46 = 16,892.07 : x
  2. Step 2: Convert to fraction form
    25,721/38,581.46 = 16,892.07/x
  3. Step 3: Cross multiply
    25,721x = 38,581.46 × 16,892.07
  4. Step 4: Simplify right side
    25,721x = 651,720,723.02
  5. Step 5: Solve for x
    x = 651,720,723.02/25,721
  6. Step 6: Final answer
    x = 25,338.08

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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.