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Finding the Fourth Proportional to 18,230.80, 25,128.96 and 14,244.96

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Solution

The fourth proportional to 18,230.80, 25,128.96 and 14,244.96 is: 19,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.80 : 25,128.96 = 14,244.96 : x
  2. Step 2: Convert to fraction form
    18,230.80/25,128.96 = 14,244.96/x
  3. Step 3: Cross multiply
    18,230.80x = 25,128.96 × 14,244.96
  4. Step 4: Simplify right side
    18,230.80x = 357,961,030.04
  5. Step 5: Solve for x
    x = 357,961,030.04/18,230.80
  6. Step 6: Final answer
    x = 19,634.96

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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.