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Finding the Fourth Proportional to 17,211.84, 23,753.44 and 9,658.72

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Solution

The fourth proportional to 17,211.84, 23,753.44 and 9,658.72 is: 13,329.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,211.84 : 23,753.44 = 9,658.72 : x
  2. Step 2: Convert to fraction form
    17,211.84/23,753.44 = 9,658.72/x
  3. Step 3: Cross multiply
    17,211.84x = 23,753.44 × 9,658.72
  4. Step 4: Simplify right side
    17,211.84x = 229,427,826.00
  5. Step 5: Solve for x
    x = 229,427,826.00/17,211.84
  6. Step 6: Final answer
    x = 13,329.65

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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.