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Finding the Fourth Proportional to 2,263.40, 3,395.10 and 2,061.80

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Solution

The fourth proportional to 2,263.40, 3,395.10 and 2,061.80 is: 3,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.40 : 3,395.10 = 2,061.80 : x
  2. Step 2: Convert to fraction form
    2,263.40/3,395.10 = 2,061.80/x
  3. Step 3: Cross multiply
    2,263.40x = 3,395.10 × 2,061.80
  4. Step 4: Simplify right side
    2,263.40x = 7,000,017.18
  5. Step 5: Solve for x
    x = 7,000,017.18/2,263.40
  6. Step 6: Final answer
    x = 3,092.70

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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.