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Finding the Fourth Proportional to 17,920.82, 24,730.53 and 9,963.74

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Solution

The fourth proportional to 17,920.82, 24,730.53 and 9,963.74 is: 13,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.82 : 24,730.53 = 9,963.74 : x
  2. Step 2: Convert to fraction form
    17,920.82/24,730.53 = 9,963.74/x
  3. Step 3: Cross multiply
    17,920.82x = 24,730.53 × 9,963.74
  4. Step 4: Simplify right side
    17,920.82x = 246,408,570.98
  5. Step 5: Solve for x
    x = 246,408,570.98/17,920.82
  6. Step 6: Final answer
    x = 13,749.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.