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Finding the Fourth Proportional to 17,243.12, 25,840.38 and 7,860.08

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Solution

The fourth proportional to 17,243.12, 25,840.38 and 7,860.08 is: 11,779.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,243.12 : 25,840.38 = 7,860.08 : x
  2. Step 2: Convert to fraction form
    17,243.12/25,840.38 = 7,860.08/x
  3. Step 3: Cross multiply
    17,243.12x = 25,840.38 × 7,860.08
  4. Step 4: Simplify right side
    17,243.12x = 203,107,454.03
  5. Step 5: Solve for x
    x = 203,107,454.03/17,243.12
  6. Step 6: Final answer
    x = 11,779.04

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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.