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Finding the Fourth Proportional to 3,754.48, 5,631.22 and 980.93

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Solution

The fourth proportional to 3,754.48, 5,631.22 and 980.93 is: 1,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.48 : 5,631.22 = 980.93 : x
  2. Step 2: Convert to fraction form
    3,754.48/5,631.22 = 980.93/x
  3. Step 3: Cross multiply
    3,754.48x = 5,631.22 × 980.93
  4. Step 4: Simplify right side
    3,754.48x = 5,523,832.63
  5. Step 5: Solve for x
    x = 5,523,832.63/3,754.48
  6. Step 6: Final answer
    x = 1,471.26

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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.