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Finding the Fourth Proportional to 4,964.93, 6,854.81 and 3,078.51

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Solution

The fourth proportional to 4,964.93, 6,854.81 and 3,078.51 is: 4,250.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,964.93 : 6,854.81 = 3,078.51 : x
  2. Step 2: Convert to fraction form
    4,964.93/6,854.81 = 3,078.51/x
  3. Step 3: Cross multiply
    4,964.93x = 6,854.81 × 3,078.51
  4. Step 4: Simplify right side
    4,964.93x = 21,102,585.74
  5. Step 5: Solve for x
    x = 21,102,585.74/4,964.93
  6. Step 6: Final answer
    x = 4,250.33

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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.