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Finding the Fourth Proportional to 17,005.36, 25,515.74 and 8,681.08

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Solution

The fourth proportional to 17,005.36, 25,515.74 and 8,681.08 is: 13,025.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,005.36 : 25,515.74 = 8,681.08 : x
  2. Step 2: Convert to fraction form
    17,005.36/25,515.74 = 8,681.08/x
  3. Step 3: Cross multiply
    17,005.36x = 25,515.74 × 8,681.08
  4. Step 4: Simplify right side
    17,005.36x = 221,504,180.20
  5. Step 5: Solve for x
    x = 221,504,180.20/17,005.36
  6. Step 6: Final answer
    x = 13,025.55

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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.