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Finding the Fourth Proportional to 4,918.92, 7,386.74 and 3,285.96

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Solution

The fourth proportional to 4,918.92, 7,386.74 and 3,285.96 is: 4,934.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.92 : 7,386.74 = 3,285.96 : x
  2. Step 2: Convert to fraction form
    4,918.92/7,386.74 = 3,285.96/x
  3. Step 3: Cross multiply
    4,918.92x = 7,386.74 × 3,285.96
  4. Step 4: Simplify right side
    4,918.92x = 24,272,532.17
  5. Step 5: Solve for x
    x = 24,272,532.17/4,918.92
  6. Step 6: Final answer
    x = 4,934.52

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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.