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Finding the Fourth Proportional to 2,356.62, 3,535.74 and 713.56

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Solution

The fourth proportional to 2,356.62, 3,535.74 and 713.56 is: 1,070.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,356.62 : 3,535.74 = 713.56 : x
  2. Step 2: Convert to fraction form
    2,356.62/3,535.74 = 713.56/x
  3. Step 3: Cross multiply
    2,356.62x = 3,535.74 × 713.56
  4. Step 4: Simplify right side
    2,356.62x = 2,522,962.63
  5. Step 5: Solve for x
    x = 2,522,962.63/2,356.62
  6. Step 6: Final answer
    x = 1,070.59

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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.