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Finding the Fourth Proportional to 1,122.52, 1,548.54 and 967

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Solution

The fourth proportional to 1,122.52, 1,548.54 and 967 is: 1,334.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122.52 : 1,548.54 = 967 : x
  2. Step 2: Convert to fraction form
    1,122.52/1,548.54 = 967/x
  3. Step 3: Cross multiply
    1,122.52x = 1,548.54 × 967
  4. Step 4: Simplify right side
    1,122.52x = 1,497,438.18
  5. Step 5: Solve for x
    x = 1,497,438.18/1,122.52
  6. Step 6: Final answer
    x = 1,334.00

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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.