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Finding the Fourth Proportional to 1,552.44, 2,142.90 and 963.48

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Solution

The fourth proportional to 1,552.44, 2,142.90 and 963.48 is: 1,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.44 : 2,142.90 = 963.48 : x
  2. Step 2: Convert to fraction form
    1,552.44/2,142.90 = 963.48/x
  3. Step 3: Cross multiply
    1,552.44x = 2,142.90 × 963.48
  4. Step 4: Simplify right side
    1,552.44x = 2,064,641.29
  5. Step 5: Solve for x
    x = 2,064,641.29/1,552.44
  6. Step 6: Final answer
    x = 1,329.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.