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Finding the Fourth Proportional to 17,068.70, 25,617.45 and 8,311.10

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Solution

The fourth proportional to 17,068.70, 25,617.45 and 8,311.10 is: 12,473.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,068.70 : 25,617.45 = 8,311.10 : x
  2. Step 2: Convert to fraction form
    17,068.70/25,617.45 = 8,311.10/x
  3. Step 3: Cross multiply
    17,068.70x = 25,617.45 × 8,311.10
  4. Step 4: Simplify right side
    17,068.70x = 212,909,188.70
  5. Step 5: Solve for x
    x = 212,909,188.70/17,068.70
  6. Step 6: Final answer
    x = 12,473.66

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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.