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Finding the Fourth Proportional to 6,718.59, 9,279.41 and 5,047.29

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Solution

The fourth proportional to 6,718.59, 9,279.41 and 5,047.29 is: 6,971.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,718.59 : 9,279.41 = 5,047.29 : x
  2. Step 2: Convert to fraction form
    6,718.59/9,279.41 = 5,047.29/x
  3. Step 3: Cross multiply
    6,718.59x = 9,279.41 × 5,047.29
  4. Step 4: Simplify right side
    6,718.59x = 46,835,873.30
  5. Step 5: Solve for x
    x = 46,835,873.30/6,718.59
  6. Step 6: Final answer
    x = 6,971.09

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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.