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Finding the Fourth Proportional to 3,495.71, 5,243.81 and 1,155.62

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Solution

The fourth proportional to 3,495.71, 5,243.81 and 1,155.62 is: 1,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.71 : 5,243.81 = 1,155.62 : x
  2. Step 2: Convert to fraction form
    3,495.71/5,243.81 = 1,155.62/x
  3. Step 3: Cross multiply
    3,495.71x = 5,243.81 × 1,155.62
  4. Step 4: Simplify right side
    3,495.71x = 6,059,819.72
  5. Step 5: Solve for x
    x = 6,059,819.72/3,495.71
  6. Step 6: Final answer
    x = 1,733.50

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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.