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Finding the Fourth Proportional to 2,966.65, 4,449.93 and 886.66

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Solution

The fourth proportional to 2,966.65, 4,449.93 and 886.66 is: 1,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,966.65 : 4,449.93 = 886.66 : x
  2. Step 2: Convert to fraction form
    2,966.65/4,449.93 = 886.66/x
  3. Step 3: Cross multiply
    2,966.65x = 4,449.93 × 886.66
  4. Step 4: Simplify right side
    2,966.65x = 3,945,570.50
  5. Step 5: Solve for x
    x = 3,945,570.50/2,966.65
  6. Step 6: Final answer
    x = 1,329.98

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Similar ratio
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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.