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Finding the Fourth Proportional to 7,069.88, 10,608.24 and 2,911.16

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Solution

The fourth proportional to 7,069.88, 10,608.24 and 2,911.16 is: 4,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,069.88 : 10,608.24 = 2,911.16 : x
  2. Step 2: Convert to fraction form
    7,069.88/10,608.24 = 2,911.16/x
  3. Step 3: Cross multiply
    7,069.88x = 10,608.24 × 2,911.16
  4. Step 4: Simplify right side
    7,069.88x = 30,882,283.96
  5. Step 5: Solve for x
    x = 30,882,283.96/7,069.88
  6. Step 6: Final answer
    x = 4,368.15

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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.