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Finding the Fourth Proportional to 17,239.74, 25,860.48 and 4,759.48

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Solution

The fourth proportional to 17,239.74, 25,860.48 and 4,759.48 is: 7,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,239.74 : 25,860.48 = 4,759.48 : x
  2. Step 2: Convert to fraction form
    17,239.74/25,860.48 = 4,759.48/x
  3. Step 3: Cross multiply
    17,239.74x = 25,860.48 × 4,759.48
  4. Step 4: Simplify right side
    17,239.74x = 123,082,437.35
  5. Step 5: Solve for x
    x = 123,082,437.35/17,239.74
  6. Step 6: Final answer
    x = 7,139.46

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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.