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Finding the Fourth Proportional to 15,311.70, 22,967.55 and 13,367.70

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Solution

The fourth proportional to 15,311.70, 22,967.55 and 13,367.70 is: 20,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.70 : 22,967.55 = 13,367.70 : x
  2. Step 2: Convert to fraction form
    15,311.70/22,967.55 = 13,367.70/x
  3. Step 3: Cross multiply
    15,311.70x = 22,967.55 × 13,367.70
  4. Step 4: Simplify right side
    15,311.70x = 307,023,318.14
  5. Step 5: Solve for x
    x = 307,023,318.14/15,311.70
  6. Step 6: Final answer
    x = 20,051.55

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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.