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Finding the Fourth Proportional to 2,968.32, 4,093.16 and 2,221.08

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Solution

The fourth proportional to 2,968.32, 4,093.16 and 2,221.08 is: 3,062.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.32 : 4,093.16 = 2,221.08 : x
  2. Step 2: Convert to fraction form
    2,968.32/4,093.16 = 2,221.08/x
  3. Step 3: Cross multiply
    2,968.32x = 4,093.16 × 2,221.08
  4. Step 4: Simplify right side
    2,968.32x = 9,091,235.81
  5. Step 5: Solve for x
    x = 9,091,235.81/2,968.32
  6. Step 6: Final answer
    x = 3,062.75

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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.