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Finding the Fourth Proportional to 24,376.40, 36,521.40 and 20,920.40

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Solution

The fourth proportional to 24,376.40, 36,521.40 and 20,920.40 is: 31,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,376.40 : 36,521.40 = 20,920.40 : x
  2. Step 2: Convert to fraction form
    24,376.40/36,521.40 = 20,920.40/x
  3. Step 3: Cross multiply
    24,376.40x = 36,521.40 × 20,920.40
  4. Step 4: Simplify right side
    24,376.40x = 764,042,296.56
  5. Step 5: Solve for x
    x = 764,042,296.56/24,376.40
  6. Step 6: Final answer
    x = 31,343.52

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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.