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Finding the Fourth Proportional to 3,089.91, 4,253.13 and 2,696.25

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Solution

The fourth proportional to 3,089.91, 4,253.13 and 2,696.25 is: 3,711.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.91 : 4,253.13 = 2,696.25 : x
  2. Step 2: Convert to fraction form
    3,089.91/4,253.13 = 2,696.25/x
  3. Step 3: Cross multiply
    3,089.91x = 4,253.13 × 2,696.25
  4. Step 4: Simplify right side
    3,089.91x = 11,467,501.76
  5. Step 5: Solve for x
    x = 11,467,501.76/3,089.91
  6. Step 6: Final answer
    x = 3,711.27

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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.