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Finding the Fourth Proportional to 5,691.37, 7,858.13 and 4,749.59

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Solution

The fourth proportional to 5,691.37, 7,858.13 and 4,749.59 is: 6,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,691.37 : 7,858.13 = 4,749.59 : x
  2. Step 2: Convert to fraction form
    5,691.37/7,858.13 = 4,749.59/x
  3. Step 3: Cross multiply
    5,691.37x = 7,858.13 × 4,749.59
  4. Step 4: Simplify right side
    5,691.37x = 37,322,927.19
  5. Step 5: Solve for x
    x = 37,322,927.19/5,691.37
  6. Step 6: Final answer
    x = 6,557.81

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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.