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Finding the Fourth Proportional to 25,538.91, 38,308.38 and 8,010.12

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Solution

The fourth proportional to 25,538.91, 38,308.38 and 8,010.12 is: 12,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,538.91 : 38,308.38 = 8,010.12 : x
  2. Step 2: Convert to fraction form
    25,538.91/38,308.38 = 8,010.12/x
  3. Step 3: Cross multiply
    25,538.91x = 38,308.38 × 8,010.12
  4. Step 4: Simplify right side
    25,538.91x = 306,854,720.81
  5. Step 5: Solve for x
    x = 306,854,720.81/25,538.91
  6. Step 6: Final answer
    x = 12,015.18

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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.