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Finding the Fourth Proportional to 5,491.48, 7,581.44 and 3,505.08

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Solution

The fourth proportional to 5,491.48, 7,581.44 and 3,505.08 is: 4,839.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.48 : 7,581.44 = 3,505.08 : x
  2. Step 2: Convert to fraction form
    5,491.48/7,581.44 = 3,505.08/x
  3. Step 3: Cross multiply
    5,491.48x = 7,581.44 × 3,505.08
  4. Step 4: Simplify right side
    5,491.48x = 26,573,553.72
  5. Step 5: Solve for x
    x = 26,573,553.72/5,491.48
  6. Step 6: Final answer
    x = 4,839.05

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1.5x scale

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.