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Finding the Fourth Proportional to 17,103.96, 25,655.88 and 13,663.08

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Solution

The fourth proportional to 17,103.96, 25,655.88 and 13,663.08 is: 20,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.96 : 25,655.88 = 13,663.08 : x
  2. Step 2: Convert to fraction form
    17,103.96/25,655.88 = 13,663.08/x
  3. Step 3: Cross multiply
    17,103.96x = 25,655.88 × 13,663.08
  4. Step 4: Simplify right side
    17,103.96x = 350,538,340.91
  5. Step 5: Solve for x
    x = 350,538,340.91/17,103.96
  6. Step 6: Final answer
    x = 20,494.57

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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.