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Finding the Fourth Proportional to 26,874.80, 40,312.20 and 26,680.40

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Solution

The fourth proportional to 26,874.80, 40,312.20 and 26,680.40 is: 40,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,874.80 : 40,312.20 = 26,680.40 : x
  2. Step 2: Convert to fraction form
    26,874.80/40,312.20 = 26,680.40/x
  3. Step 3: Cross multiply
    26,874.80x = 40,312.20 × 26,680.40
  4. Step 4: Simplify right side
    26,874.80x = 1,075,545,620.88
  5. Step 5: Solve for x
    x = 1,075,545,620.88/26,874.80
  6. Step 6: Final answer
    x = 40,020.60

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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.