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Finding the Fourth Proportional to 2,446.12, 3,669.02 and 714.60

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Solution

The fourth proportional to 2,446.12, 3,669.02 and 714.60 is: 1,071.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,446.12 : 3,669.02 = 714.60 : x
  2. Step 2: Convert to fraction form
    2,446.12/3,669.02 = 714.60/x
  3. Step 3: Cross multiply
    2,446.12x = 3,669.02 × 714.60
  4. Step 4: Simplify right side
    2,446.12x = 2,621,881.69
  5. Step 5: Solve for x
    x = 2,621,881.69/2,446.12
  6. Step 6: Final answer
    x = 1,071.85

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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.