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Finding the Fourth Proportional to 17,671.77, 24,376.95 and 15,186.69

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Solution

The fourth proportional to 17,671.77, 24,376.95 and 15,186.69 is: 20,948.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,671.77 : 24,376.95 = 15,186.69 : x
  2. Step 2: Convert to fraction form
    17,671.77/24,376.95 = 15,186.69/x
  3. Step 3: Cross multiply
    17,671.77x = 24,376.95 × 15,186.69
  4. Step 4: Simplify right side
    17,671.77x = 370,205,182.80
  5. Step 5: Solve for x
    x = 370,205,182.80/17,671.77
  6. Step 6: Final answer
    x = 20,948.96

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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.