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Finding the Fourth Proportional to 2,356.90, 3,535.60 and 797.08

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Solution

The fourth proportional to 2,356.90, 3,535.60 and 797.08 is: 1,195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.90 : 3,535.60 = 797.08 : x
  2. Step 2: Convert to fraction form
    2,356.90/3,535.60 = 797.08/x
  3. Step 3: Cross multiply
    2,356.90x = 3,535.60 × 797.08
  4. Step 4: Simplify right side
    2,356.90x = 2,818,156.05
  5. Step 5: Solve for x
    x = 2,818,156.05/2,356.90
  6. Step 6: Final answer
    x = 1,195.70

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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.