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Finding the Fourth Proportional to 5,726.76, 7,896.69 and 4,974.27

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Solution

The fourth proportional to 5,726.76, 7,896.69 and 4,974.27 is: 6,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,726.76 : 7,896.69 = 4,974.27 : x
  2. Step 2: Convert to fraction form
    5,726.76/7,896.69 = 4,974.27/x
  3. Step 3: Cross multiply
    5,726.76x = 7,896.69 × 4,974.27
  4. Step 4: Simplify right side
    5,726.76x = 39,280,268.17
  5. Step 5: Solve for x
    x = 39,280,268.17/5,726.76
  6. Step 6: Final answer
    x = 6,859.07

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Half scale
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Double scale
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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.