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Finding the Fourth Proportional to 4,876.60, 6,719.22 and 4,077.16

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Solution

The fourth proportional to 4,876.60, 6,719.22 and 4,077.16 is: 5,617.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.60 : 6,719.22 = 4,077.16 : x
  2. Step 2: Convert to fraction form
    4,876.60/6,719.22 = 4,077.16/x
  3. Step 3: Cross multiply
    4,876.60x = 6,719.22 × 4,077.16
  4. Step 4: Simplify right side
    4,876.60x = 27,395,335.02
  5. Step 5: Solve for x
    x = 27,395,335.02/4,876.60
  6. Step 6: Final answer
    x = 5,617.71

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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.