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Finding the Fourth Proportional to 3,056.85, 4,585.23 and 748.35

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Solution

The fourth proportional to 3,056.85, 4,585.23 and 748.35 is: 1,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.85 : 4,585.23 = 748.35 : x
  2. Step 2: Convert to fraction form
    3,056.85/4,585.23 = 748.35/x
  3. Step 3: Cross multiply
    3,056.85x = 4,585.23 × 748.35
  4. Step 4: Simplify right side
    3,056.85x = 3,431,356.87
  5. Step 5: Solve for x
    x = 3,431,356.87/3,056.85
  6. Step 6: Final answer
    x = 1,122.51

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1.5x scale

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.