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Finding the Fourth Proportional to 2,769.76, 4,155.05 and 895.02

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Solution

The fourth proportional to 2,769.76, 4,155.05 and 895.02 is: 1,342.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.76 : 4,155.05 = 895.02 : x
  2. Step 2: Convert to fraction form
    2,769.76/4,155.05 = 895.02/x
  3. Step 3: Cross multiply
    2,769.76x = 4,155.05 × 895.02
  4. Step 4: Simplify right side
    2,769.76x = 3,718,855.09
  5. Step 5: Solve for x
    x = 3,718,855.09/2,769.76
  6. Step 6: Final answer
    x = 1,342.66

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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.