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Finding the Fourth Proportional to 7,798.72, 11,695.28 and 2,867.26

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Solution

The fourth proportional to 7,798.72, 11,695.28 and 2,867.26 is: 4,299.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.72 : 11,695.28 = 2,867.26 : x
  2. Step 2: Convert to fraction form
    7,798.72/11,695.28 = 2,867.26/x
  3. Step 3: Cross multiply
    7,798.72x = 11,695.28 × 2,867.26
  4. Step 4: Simplify right side
    7,798.72x = 33,533,408.53
  5. Step 5: Solve for x
    x = 33,533,408.53/7,798.72
  6. Step 6: Final answer
    x = 4,299.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.