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Finding the Fourth Proportional to 23,371, 32,251.90 and 13,161.20

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Solution

The fourth proportional to 23,371, 32,251.90 and 13,161.20 is: 18,162.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,371 : 32,251.90 = 13,161.20 : x
  2. Step 2: Convert to fraction form
    23,371/32,251.90 = 13,161.20/x
  3. Step 3: Cross multiply
    23,371x = 32,251.90 × 13,161.20
  4. Step 4: Simplify right side
    23,371x = 424,473,706.28
  5. Step 5: Solve for x
    x = 424,473,706.28/23,371
  6. Step 6: Final answer
    x = 18,162.41

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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.