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Finding the Fourth Proportional to 5,697.72, 7,863.72 and 3,460.44

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Solution

The fourth proportional to 5,697.72, 7,863.72 and 3,460.44 is: 4,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,697.72 : 7,863.72 = 3,460.44 : x
  2. Step 2: Convert to fraction form
    5,697.72/7,863.72 = 3,460.44/x
  3. Step 3: Cross multiply
    5,697.72x = 7,863.72 × 3,460.44
  4. Step 4: Simplify right side
    5,697.72x = 27,211,931.24
  5. Step 5: Solve for x
    x = 27,211,931.24/5,697.72
  6. Step 6: Final answer
    x = 4,775.93

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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.