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Finding the Fourth Proportional to 16,570.80, 22,868.08 and 9,017.60

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Solution

The fourth proportional to 16,570.80, 22,868.08 and 9,017.60 is: 12,444.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,570.80 : 22,868.08 = 9,017.60 : x
  2. Step 2: Convert to fraction form
    16,570.80/22,868.08 = 9,017.60/x
  3. Step 3: Cross multiply
    16,570.80x = 22,868.08 × 9,017.60
  4. Step 4: Simplify right side
    16,570.80x = 206,215,198.21
  5. Step 5: Solve for x
    x = 206,215,198.21/16,570.80
  6. Step 6: Final answer
    x = 12,444.49

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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.