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Finding the Fourth Proportional to 1,102.53, 1,522.59 and 944.25

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Solution

The fourth proportional to 1,102.53, 1,522.59 and 944.25 is: 1,304.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102.53 : 1,522.59 = 944.25 : x
  2. Step 2: Convert to fraction form
    1,102.53/1,522.59 = 944.25/x
  3. Step 3: Cross multiply
    1,102.53x = 1,522.59 × 944.25
  4. Step 4: Simplify right side
    1,102.53x = 1,437,705.61
  5. Step 5: Solve for x
    x = 1,437,705.61/1,102.53
  6. Step 6: Final answer
    x = 1,304.01

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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.