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Finding the Fourth Proportional to 25,821.72, 38,732.04 and 7,101.68

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Solution

The fourth proportional to 25,821.72, 38,732.04 and 7,101.68 is: 10,652.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,821.72 : 38,732.04 = 7,101.68 : x
  2. Step 2: Convert to fraction form
    25,821.72/38,732.04 = 7,101.68/x
  3. Step 3: Cross multiply
    25,821.72x = 38,732.04 × 7,101.68
  4. Step 4: Simplify right side
    25,821.72x = 275,062,360.17
  5. Step 5: Solve for x
    x = 275,062,360.17/25,821.72
  6. Step 6: Final answer
    x = 10,652.36

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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.