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Finding the Fourth Proportional to 17,005.95, 25,518.92 and 7,144.47

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Solution

The fourth proportional to 17,005.95, 25,518.92 and 7,144.47 is: 10,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,005.95 : 25,518.92 = 7,144.47 : x
  2. Step 2: Convert to fraction form
    17,005.95/25,518.92 = 7,144.47/x
  3. Step 3: Cross multiply
    17,005.95x = 25,518.92 × 7,144.47
  4. Step 4: Simplify right side
    17,005.95x = 182,319,122.65
  5. Step 5: Solve for x
    x = 182,319,122.65/17,005.95
  6. Step 6: Final answer
    x = 10,720.90

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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.