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Finding the Fourth Proportional to 5,063.76, 6,992.81 and 4,787.65

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Solution

The fourth proportional to 5,063.76, 6,992.81 and 4,787.65 is: 6,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,063.76 : 6,992.81 = 4,787.65 : x
  2. Step 2: Convert to fraction form
    5,063.76/6,992.81 = 4,787.65/x
  3. Step 3: Cross multiply
    5,063.76x = 6,992.81 × 4,787.65
  4. Step 4: Simplify right side
    5,063.76x = 33,479,126.80
  5. Step 5: Solve for x
    x = 33,479,126.80/5,063.76
  6. Step 6: Final answer
    x = 6,611.52

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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.