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Finding the Fourth Proportional to 17,951.61, 24,770.79 and 9,992.76

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Solution

The fourth proportional to 17,951.61, 24,770.79 and 9,992.76 is: 13,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,951.61 : 24,770.79 = 9,992.76 : x
  2. Step 2: Convert to fraction form
    17,951.61/24,770.79 = 9,992.76/x
  3. Step 3: Cross multiply
    17,951.61x = 24,770.79 × 9,992.76
  4. Step 4: Simplify right side
    17,951.61x = 247,528,559.48
  5. Step 5: Solve for x
    x = 247,528,559.48/17,951.61
  6. Step 6: Final answer
    x = 13,788.66

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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.