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Finding the Fourth Proportional to 16,969.80, 25,454.70 and 8,675.40

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Solution

The fourth proportional to 16,969.80, 25,454.70 and 8,675.40 is: 13,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.80 : 25,454.70 = 8,675.40 : x
  2. Step 2: Convert to fraction form
    16,969.80/25,454.70 = 8,675.40/x
  3. Step 3: Cross multiply
    16,969.80x = 25,454.70 × 8,675.40
  4. Step 4: Simplify right side
    16,969.80x = 220,829,704.38
  5. Step 5: Solve for x
    x = 220,829,704.38/16,969.80
  6. Step 6: Final answer
    x = 13,013.10

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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.