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Finding the Fourth Proportional to 2,343.86, 3,515.78 and 700.35

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Solution

The fourth proportional to 2,343.86, 3,515.78 and 700.35 is: 1,050.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,343.86 : 3,515.78 = 700.35 : x
  2. Step 2: Convert to fraction form
    2,343.86/3,515.78 = 700.35/x
  3. Step 3: Cross multiply
    2,343.86x = 3,515.78 × 700.35
  4. Step 4: Simplify right side
    2,343.86x = 2,462,273.02
  5. Step 5: Solve for x
    x = 2,462,273.02/2,343.86
  6. Step 6: Final answer
    x = 1,050.52

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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.