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Finding the Fourth Proportional to 2,462.39, 3,695.05 and 981.35

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Solution

The fourth proportional to 2,462.39, 3,695.05 and 981.35 is: 1,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,462.39 : 3,695.05 = 981.35 : x
  2. Step 2: Convert to fraction form
    2,462.39/3,695.05 = 981.35/x
  3. Step 3: Cross multiply
    2,462.39x = 3,695.05 × 981.35
  4. Step 4: Simplify right side
    2,462.39x = 3,626,118.84
  5. Step 5: Solve for x
    x = 3,626,118.84/2,462.39
  6. Step 6: Final answer
    x = 1,472.60

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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.