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Finding the Fourth Proportional to 2,503.71, 3,755.22 and 749.01

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Solution

The fourth proportional to 2,503.71, 3,755.22 and 749.01 is: 1,123.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.71 : 3,755.22 = 749.01 : x
  2. Step 2: Convert to fraction form
    2,503.71/3,755.22 = 749.01/x
  3. Step 3: Cross multiply
    2,503.71x = 3,755.22 × 749.01
  4. Step 4: Simplify right side
    2,503.71x = 2,812,697.33
  5. Step 5: Solve for x
    x = 2,812,697.33/2,503.71
  6. Step 6: Final answer
    x = 1,123.41

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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.