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Finding the Fourth Proportional to 26,903.40, 40,311.90 and 25,348.20

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Solution

The fourth proportional to 26,903.40, 40,311.90 and 25,348.20 is: 37,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,903.40 : 40,311.90 = 25,348.20 : x
  2. Step 2: Convert to fraction form
    26,903.40/40,311.90 = 25,348.20/x
  3. Step 3: Cross multiply
    26,903.40x = 40,311.90 × 25,348.20
  4. Step 4: Simplify right side
    26,903.40x = 1,021,834,103.58
  5. Step 5: Solve for x
    x = 1,021,834,103.58/26,903.40
  6. Step 6: Final answer
    x = 37,981.60

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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.