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Finding the Fourth Proportional to 26,829.80, 40,244.70 and 23,136.20

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Solution

The fourth proportional to 26,829.80, 40,244.70 and 23,136.20 is: 34,704.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,829.80 : 40,244.70 = 23,136.20 : x
  2. Step 2: Convert to fraction form
    26,829.80/40,244.70 = 23,136.20/x
  3. Step 3: Cross multiply
    26,829.80x = 40,244.70 × 23,136.20
  4. Step 4: Simplify right side
    26,829.80x = 931,109,428.14
  5. Step 5: Solve for x
    x = 931,109,428.14/26,829.80
  6. Step 6: Final answer
    x = 34,704.30

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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.