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Finding the Fourth Proportional to 3,495.05, 4,822.74 and 2,078.76

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Solution

The fourth proportional to 3,495.05, 4,822.74 and 2,078.76 is: 2,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,495.05 : 4,822.74 = 2,078.76 : x
  2. Step 2: Convert to fraction form
    3,495.05/4,822.74 = 2,078.76/x
  3. Step 3: Cross multiply
    3,495.05x = 4,822.74 × 2,078.76
  4. Step 4: Simplify right side
    3,495.05x = 10,025,337.09
  5. Step 5: Solve for x
    x = 10,025,337.09/3,495.05
  6. Step 6: Final answer
    x = 2,868.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.