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Finding the Fourth Proportional to 19,651.25, 27,119.21 and 10,699.24

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Solution

The fourth proportional to 19,651.25, 27,119.21 and 10,699.24 is: 14,765.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,651.25 : 27,119.21 = 10,699.24 : x
  2. Step 2: Convert to fraction form
    19,651.25/27,119.21 = 10,699.24/x
  3. Step 3: Cross multiply
    19,651.25x = 27,119.21 × 10,699.24
  4. Step 4: Simplify right side
    19,651.25x = 290,154,747.31
  5. Step 5: Solve for x
    x = 290,154,747.31/19,651.25
  6. Step 6: Final answer
    x = 14,765.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.