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Finding the Fourth Proportional to 17,103.80, 25,655.70 and 16,447.70

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Solution

The fourth proportional to 17,103.80, 25,655.70 and 16,447.70 is: 24,671.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.80 : 25,655.70 = 16,447.70 : x
  2. Step 2: Convert to fraction form
    17,103.80/25,655.70 = 16,447.70/x
  3. Step 3: Cross multiply
    17,103.80x = 25,655.70 × 16,447.70
  4. Step 4: Simplify right side
    17,103.80x = 421,977,256.89
  5. Step 5: Solve for x
    x = 421,977,256.89/17,103.80
  6. Step 6: Final answer
    x = 24,671.55

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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.