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Finding the Fourth Proportional to 3,060.72, 4,591.05 and 752.22

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Solution

The fourth proportional to 3,060.72, 4,591.05 and 752.22 is: 1,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.72 : 4,591.05 = 752.22 : x
  2. Step 2: Convert to fraction form
    3,060.72/4,591.05 = 752.22/x
  3. Step 3: Cross multiply
    3,060.72x = 4,591.05 × 752.22
  4. Step 4: Simplify right side
    3,060.72x = 3,453,476.81
  5. Step 5: Solve for x
    x = 3,453,476.81/3,060.72
  6. Step 6: Final answer
    x = 1,128.32

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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.