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Finding the Fourth Proportional to 6,992.16, 9,648.60 and 3,967.08

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Solution

The fourth proportional to 6,992.16, 9,648.60 and 3,967.08 is: 5,474.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992.16 : 9,648.60 = 3,967.08 : x
  2. Step 2: Convert to fraction form
    6,992.16/9,648.60 = 3,967.08/x
  3. Step 3: Cross multiply
    6,992.16x = 9,648.60 × 3,967.08
  4. Step 4: Simplify right side
    6,992.16x = 38,276,768.09
  5. Step 5: Solve for x
    x = 38,276,768.09/6,992.16
  6. Step 6: Final answer
    x = 5,474.24

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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.