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Finding the Fourth Proportional to 2,349.85, 3,525.06 and 706.40

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Solution

The fourth proportional to 2,349.85, 3,525.06 and 706.40 is: 1,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.85 : 3,525.06 = 706.40 : x
  2. Step 2: Convert to fraction form
    2,349.85/3,525.06 = 706.40/x
  3. Step 3: Cross multiply
    2,349.85x = 3,525.06 × 706.40
  4. Step 4: Simplify right side
    2,349.85x = 2,490,093.56
  5. Step 5: Solve for x
    x = 2,490,093.56/2,349.85
  6. Step 6: Final answer
    x = 1,059.68

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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.