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Finding the Fourth Proportional to 17,251.56, 25,880.64 and 5,561.64

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Solution

The fourth proportional to 17,251.56, 25,880.64 and 5,561.64 is: 8,343.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,251.56 : 25,880.64 = 5,561.64 : x
  2. Step 2: Convert to fraction form
    17,251.56/25,880.64 = 5,561.64/x
  3. Step 3: Cross multiply
    17,251.56x = 25,880.64 × 5,561.64
  4. Step 4: Simplify right side
    17,251.56x = 143,938,802.65
  5. Step 5: Solve for x
    x = 143,938,802.65/17,251.56
  6. Step 6: Final answer
    x = 8,343.52

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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.