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Finding the Fourth Proportional to 5,274.92, 7,279.07 and 2,917.06

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Solution

The fourth proportional to 5,274.92, 7,279.07 and 2,917.06 is: 4,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.92 : 7,279.07 = 2,917.06 : x
  2. Step 2: Convert to fraction form
    5,274.92/7,279.07 = 2,917.06/x
  3. Step 3: Cross multiply
    5,274.92x = 7,279.07 × 2,917.06
  4. Step 4: Simplify right side
    5,274.92x = 21,233,492.10
  5. Step 5: Solve for x
    x = 21,233,492.10/5,274.92
  6. Step 6: Final answer
    x = 4,025.37

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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.