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Finding the Fourth Proportional to 2,347.34, 3,239.34 and 1,352.61

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Solution

The fourth proportional to 2,347.34, 3,239.34 and 1,352.61 is: 1,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.34 : 3,239.34 = 1,352.61 : x
  2. Step 2: Convert to fraction form
    2,347.34/3,239.34 = 1,352.61/x
  3. Step 3: Cross multiply
    2,347.34x = 3,239.34 × 1,352.61
  4. Step 4: Simplify right side
    2,347.34x = 4,381,563.68
  5. Step 5: Solve for x
    x = 4,381,563.68/2,347.34
  6. Step 6: Final answer
    x = 1,866.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.