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Finding the Fourth Proportional to 2,473.92, 3,710.93 and 913.12

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Solution

The fourth proportional to 2,473.92, 3,710.93 and 913.12 is: 1,369.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,473.92 : 3,710.93 = 913.12 : x
  2. Step 2: Convert to fraction form
    2,473.92/3,710.93 = 913.12/x
  3. Step 3: Cross multiply
    2,473.92x = 3,710.93 × 913.12
  4. Step 4: Simplify right side
    2,473.92x = 3,388,524.40
  5. Step 5: Solve for x
    x = 3,388,524.40/2,473.92
  6. Step 6: Final answer
    x = 1,369.70

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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.