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Finding the Fourth Proportional to 2,100.93, 3,151.74 and 714.39

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Solution

The fourth proportional to 2,100.93, 3,151.74 and 714.39 is: 1,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.93 : 3,151.74 = 714.39 : x
  2. Step 2: Convert to fraction form
    2,100.93/3,151.74 = 714.39/x
  3. Step 3: Cross multiply
    2,100.93x = 3,151.74 × 714.39
  4. Step 4: Simplify right side
    2,100.93x = 2,251,571.54
  5. Step 5: Solve for x
    x = 2,251,571.54/2,100.93
  6. Step 6: Final answer
    x = 1,071.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.