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Finding the Fourth Proportional to 2,372.49, 3,559.17 and 985.13

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Solution

The fourth proportional to 2,372.49, 3,559.17 and 985.13 is: 1,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.49 : 3,559.17 = 985.13 : x
  2. Step 2: Convert to fraction form
    2,372.49/3,559.17 = 985.13/x
  3. Step 3: Cross multiply
    2,372.49x = 3,559.17 × 985.13
  4. Step 4: Simplify right side
    2,372.49x = 3,506,227.35
  5. Step 5: Solve for x
    x = 3,506,227.35/2,372.49
  6. Step 6: Final answer
    x = 1,477.87

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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.