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Finding the Fourth Proportional to 18,272.80, 25,199.13 and 12,598.48

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Solution

The fourth proportional to 18,272.80, 25,199.13 and 12,598.48 is: 17,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,272.80 : 25,199.13 = 12,598.48 : x
  2. Step 2: Convert to fraction form
    18,272.80/25,199.13 = 12,598.48/x
  3. Step 3: Cross multiply
    18,272.80x = 25,199.13 × 12,598.48
  4. Step 4: Simplify right side
    18,272.80x = 317,470,735.32
  5. Step 5: Solve for x
    x = 317,470,735.32/18,272.80
  6. Step 6: Final answer
    x = 17,373.95

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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.