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Finding the Fourth Proportional to 6,765.77, 9,330.72 and 4,248.12

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Solution

The fourth proportional to 6,765.77, 9,330.72 and 4,248.12 is: 5,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.77 : 9,330.72 = 4,248.12 : x
  2. Step 2: Convert to fraction form
    6,765.77/9,330.72 = 4,248.12/x
  3. Step 3: Cross multiply
    6,765.77x = 9,330.72 × 4,248.12
  4. Step 4: Simplify right side
    6,765.77x = 39,638,018.25
  5. Step 5: Solve for x
    x = 39,638,018.25/6,765.77
  6. Step 6: Final answer
    x = 5,858.61

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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.