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Finding the Fourth Proportional to 2,335.70, 3,502.67 and 775.41

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Solution

The fourth proportional to 2,335.70, 3,502.67 and 775.41 is: 1,162.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,335.70 : 3,502.67 = 775.41 : x
  2. Step 2: Convert to fraction form
    2,335.70/3,502.67 = 775.41/x
  3. Step 3: Cross multiply
    2,335.70x = 3,502.67 × 775.41
  4. Step 4: Simplify right side
    2,335.70x = 2,716,005.34
  5. Step 5: Solve for x
    x = 2,716,005.34/2,335.70
  6. Step 6: Final answer
    x = 1,162.82

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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.