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Finding the Fourth Proportional to 25,661.55, 38,493.38 and 8,806.14

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Solution

The fourth proportional to 25,661.55, 38,493.38 and 8,806.14 is: 13,209.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,661.55 : 38,493.38 = 8,806.14 : x
  2. Step 2: Convert to fraction form
    25,661.55/38,493.38 = 8,806.14/x
  3. Step 3: Cross multiply
    25,661.55x = 38,493.38 × 8,806.14
  4. Step 4: Simplify right side
    25,661.55x = 338,978,066.23
  5. Step 5: Solve for x
    x = 338,978,066.23/25,661.55
  6. Step 6: Final answer
    x = 13,209.57

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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.