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Finding the Fourth Proportional to 4,796.78, 6,618.40 and 2,700.90

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Solution

The fourth proportional to 4,796.78, 6,618.40 and 2,700.90 is: 3,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,796.78 : 6,618.40 = 2,700.90 : x
  2. Step 2: Convert to fraction form
    4,796.78/6,618.40 = 2,700.90/x
  3. Step 3: Cross multiply
    4,796.78x = 6,618.40 × 2,700.90
  4. Step 4: Simplify right side
    4,796.78x = 17,875,629.81
  5. Step 5: Solve for x
    x = 17,875,629.81/4,796.78
  6. Step 6: Final answer
    x = 3,726.59

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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.