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Finding the Fourth Proportional to 17,609.98, 26,408.68 and 8,248.40

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Solution

The fourth proportional to 17,609.98, 26,408.68 and 8,248.40 is: 12,369.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,609.98 : 26,408.68 = 8,248.40 : x
  2. Step 2: Convert to fraction form
    17,609.98/26,408.68 = 8,248.40/x
  3. Step 3: Cross multiply
    17,609.98x = 26,408.68 × 8,248.40
  4. Step 4: Simplify right side
    17,609.98x = 217,829,356.11
  5. Step 5: Solve for x
    x = 217,829,356.11/17,609.98
  6. Step 6: Final answer
    x = 12,369.65

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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.