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Finding the Fourth Proportional to 21,753.50, 32,629.88 and 9,266.90

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Solution

The fourth proportional to 21,753.50, 32,629.88 and 9,266.90 is: 13,900.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.50 : 32,629.88 = 9,266.90 : x
  2. Step 2: Convert to fraction form
    21,753.50/32,629.88 = 9,266.90/x
  3. Step 3: Cross multiply
    21,753.50x = 32,629.88 × 9,266.90
  4. Step 4: Simplify right side
    21,753.50x = 302,377,694.99
  5. Step 5: Solve for x
    x = 302,377,694.99/21,753.50
  6. Step 6: Final answer
    x = 13,900.19

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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.