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Finding the Fourth Proportional to 17,604.80, 26,407.20 and 9,281.60

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Solution

The fourth proportional to 17,604.80, 26,407.20 and 9,281.60 is: 13,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,604.80 : 26,407.20 = 9,281.60 : x
  2. Step 2: Convert to fraction form
    17,604.80/26,407.20 = 9,281.60/x
  3. Step 3: Cross multiply
    17,604.80x = 26,407.20 × 9,281.60
  4. Step 4: Simplify right side
    17,604.80x = 245,101,067.52
  5. Step 5: Solve for x
    x = 245,101,067.52/17,604.80
  6. Step 6: Final answer
    x = 13,922.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.