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Finding the Fourth Proportional to 9,084.80, 13,627.20 and 5,196.80

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Solution

The fourth proportional to 9,084.80, 13,627.20 and 5,196.80 is: 7,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,084.80 : 13,627.20 = 5,196.80 : x
  2. Step 2: Convert to fraction form
    9,084.80/13,627.20 = 5,196.80/x
  3. Step 3: Cross multiply
    9,084.80x = 13,627.20 × 5,196.80
  4. Step 4: Simplify right side
    9,084.80x = 70,817,832.96
  5. Step 5: Solve for x
    x = 70,817,832.96/9,084.80
  6. Step 6: Final answer
    x = 7,795.20

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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.