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Finding the Fourth Proportional to 3,056.50, 4,584.84 and 748

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Solution

The fourth proportional to 3,056.50, 4,584.84 and 748 is: 1,122.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.50 : 4,584.84 = 748 : x
  2. Step 2: Convert to fraction form
    3,056.50/4,584.84 = 748/x
  3. Step 3: Cross multiply
    3,056.50x = 4,584.84 × 748
  4. Step 4: Simplify right side
    3,056.50x = 3,429,460.32
  5. Step 5: Solve for x
    x = 3,429,460.32/3,056.50
  6. Step 6: Final answer
    x = 1,122.02

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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.