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Finding the Fourth Proportional to 26,990.60, 40,466.70 and 10,344.20

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Solution

The fourth proportional to 26,990.60, 40,466.70 and 10,344.20 is: 15,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990.60 : 40,466.70 = 10,344.20 : x
  2. Step 2: Convert to fraction form
    26,990.60/40,466.70 = 10,344.20/x
  3. Step 3: Cross multiply
    26,990.60x = 40,466.70 × 10,344.20
  4. Step 4: Simplify right side
    26,990.60x = 418,595,638.14
  5. Step 5: Solve for x
    x = 418,595,638.14/26,990.60
  6. Step 6: Final answer
    x = 15,508.94

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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.