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Finding the Fourth Proportional to 17,677.20, 26,515.20 and 4,529.70

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Solution

The fourth proportional to 17,677.20, 26,515.20 and 4,529.70 is: 6,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,677.20 : 26,515.20 = 4,529.70 : x
  2. Step 2: Convert to fraction form
    17,677.20/26,515.20 = 4,529.70/x
  3. Step 3: Cross multiply
    17,677.20x = 26,515.20 × 4,529.70
  4. Step 4: Simplify right side
    17,677.20x = 120,105,901.44
  5. Step 5: Solve for x
    x = 120,105,901.44/17,677.20
  6. Step 6: Final answer
    x = 6,794.40

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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.