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Finding the Fourth Proportional to 4,928.22, 7,393.44 and 1,641.66

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Solution

The fourth proportional to 4,928.22, 7,393.44 and 1,641.66 is: 2,462.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.22 : 7,393.44 = 1,641.66 : x
  2. Step 2: Convert to fraction form
    4,928.22/7,393.44 = 1,641.66/x
  3. Step 3: Cross multiply
    4,928.22x = 7,393.44 × 1,641.66
  4. Step 4: Simplify right side
    4,928.22x = 12,137,514.71
  5. Step 5: Solve for x
    x = 12,137,514.71/4,928.22
  6. Step 6: Final answer
    x = 2,462.86

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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.