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Finding the Fourth Proportional to 17,199.87, 25,798.05 and 4,721.15

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Solution

The fourth proportional to 17,199.87, 25,798.05 and 4,721.15 is: 7,081.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,199.87 : 25,798.05 = 4,721.15 : x
  2. Step 2: Convert to fraction form
    17,199.87/25,798.05 = 4,721.15/x
  3. Step 3: Cross multiply
    17,199.87x = 25,798.05 × 4,721.15
  4. Step 4: Simplify right side
    17,199.87x = 121,796,334.77
  5. Step 5: Solve for x
    x = 121,796,334.77/17,199.87
  6. Step 6: Final answer
    x = 7,081.24

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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.