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Finding the Fourth Proportional to 17,013.75, 25,525.80 and 8,699.60

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Solution

The fourth proportional to 17,013.75, 25,525.80 and 8,699.60 is: 13,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,013.75 : 25,525.80 = 8,699.60 : x
  2. Step 2: Convert to fraction form
    17,013.75/25,525.80 = 8,699.60/x
  3. Step 3: Cross multiply
    17,013.75x = 25,525.80 × 8,699.60
  4. Step 4: Simplify right side
    17,013.75x = 222,064,313.49
  5. Step 5: Solve for x
    x = 222,064,313.49/17,013.75
  6. Step 6: Final answer
    x = 13,052.05

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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.