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Finding the Fourth Proportional to 3,056.63, 4,585.03 and 748.13

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Solution

The fourth proportional to 3,056.63, 4,585.03 and 748.13 is: 1,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.63 : 4,585.03 = 748.13 : x
  2. Step 2: Convert to fraction form
    3,056.63/4,585.03 = 748.13/x
  3. Step 3: Cross multiply
    3,056.63x = 4,585.03 × 748.13
  4. Step 4: Simplify right side
    3,056.63x = 3,430,173.70
  5. Step 5: Solve for x
    x = 3,430,173.70/3,056.63
  6. Step 6: Final answer
    x = 1,122.21

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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.