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Finding the Fourth Proportional to 3,495.92, 5,243.88 and 3,320.74

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Solution

The fourth proportional to 3,495.92, 5,243.88 and 3,320.74 is: 4,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.92 : 5,243.88 = 3,320.74 : x
  2. Step 2: Convert to fraction form
    3,495.92/5,243.88 = 3,320.74/x
  3. Step 3: Cross multiply
    3,495.92x = 5,243.88 × 3,320.74
  4. Step 4: Simplify right side
    3,495.92x = 17,413,562.07
  5. Step 5: Solve for x
    x = 17,413,562.07/3,495.92
  6. Step 6: Final answer
    x = 4,981.11

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1.5x scale

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.