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Finding the Fourth Proportional to 4,866.11, 6,700.51 and 4,078.79

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Solution

The fourth proportional to 4,866.11, 6,700.51 and 4,078.79 is: 5,616.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,866.11 : 6,700.51 = 4,078.79 : x
  2. Step 2: Convert to fraction form
    4,866.11/6,700.51 = 4,078.79/x
  3. Step 3: Cross multiply
    4,866.11x = 6,700.51 × 4,078.79
  4. Step 4: Simplify right side
    4,866.11x = 27,329,973.18
  5. Step 5: Solve for x
    x = 27,329,973.18/4,866.11
  6. Step 6: Final answer
    x = 5,616.39

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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.