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Finding the Fourth Proportional to 5,928.78, 8,886.78 and 3,152.67

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Solution

The fourth proportional to 5,928.78, 8,886.78 and 3,152.67 is: 4,725.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,928.78 : 8,886.78 = 3,152.67 : x
  2. Step 2: Convert to fraction form
    5,928.78/8,886.78 = 3,152.67/x
  3. Step 3: Cross multiply
    5,928.78x = 8,886.78 × 3,152.67
  4. Step 4: Simplify right side
    5,928.78x = 28,017,084.70
  5. Step 5: Solve for x
    x = 28,017,084.70/5,928.78
  6. Step 6: Final answer
    x = 4,725.61

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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.