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Finding the Fourth Proportional to 1,747.98, 2,622.57 and 824.24

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Solution

The fourth proportional to 1,747.98, 2,622.57 and 824.24 is: 1,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.98 : 2,622.57 = 824.24 : x
  2. Step 2: Convert to fraction form
    1,747.98/2,622.57 = 824.24/x
  3. Step 3: Cross multiply
    1,747.98x = 2,622.57 × 824.24
  4. Step 4: Simplify right side
    1,747.98x = 2,161,627.10
  5. Step 5: Solve for x
    x = 2,161,627.10/1,747.98
  6. Step 6: Final answer
    x = 1,236.64

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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.