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Finding the Fourth Proportional to 26,295.20, 39,446.40 and 8,763.20

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Solution

The fourth proportional to 26,295.20, 39,446.40 and 8,763.20 is: 13,146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,295.20 : 39,446.40 = 8,763.20 : x
  2. Step 2: Convert to fraction form
    26,295.20/39,446.40 = 8,763.20/x
  3. Step 3: Cross multiply
    26,295.20x = 39,446.40 × 8,763.20
  4. Step 4: Simplify right side
    26,295.20x = 345,676,692.48
  5. Step 5: Solve for x
    x = 345,676,692.48/26,295.20
  6. Step 6: Final answer
    x = 13,146.00

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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.