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Finding the Fourth Proportional to 5,065.51, 6,990.76 and 2,827.83

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Solution

The fourth proportional to 5,065.51, 6,990.76 and 2,827.83 is: 3,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,065.51 : 6,990.76 = 2,827.83 : x
  2. Step 2: Convert to fraction form
    5,065.51/6,990.76 = 2,827.83/x
  3. Step 3: Cross multiply
    5,065.51x = 6,990.76 × 2,827.83
  4. Step 4: Simplify right side
    5,065.51x = 19,768,680.85
  5. Step 5: Solve for x
    x = 19,768,680.85/5,065.51
  6. Step 6: Final answer
    x = 3,902.60

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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.