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Finding the Fourth Proportional to 18,132.80, 25,023.20 and 10,175.01

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Solution

The fourth proportional to 18,132.80, 25,023.20 and 10,175.01 is: 14,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.80 : 25,023.20 = 10,175.01 : x
  2. Step 2: Convert to fraction form
    18,132.80/25,023.20 = 10,175.01/x
  3. Step 3: Cross multiply
    18,132.80x = 25,023.20 × 10,175.01
  4. Step 4: Simplify right side
    18,132.80x = 254,611,335.67
  5. Step 5: Solve for x
    x = 254,611,335.67/18,132.80
  6. Step 6: Final answer
    x = 14,041.48

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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.