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Finding the Fourth Proportional to 29,487.69, 40,645.59 and 19,924.59

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Solution

The fourth proportional to 29,487.69, 40,645.59 and 19,924.59 is: 27,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,487.69 : 40,645.59 = 19,924.59 : x
  2. Step 2: Convert to fraction form
    29,487.69/40,645.59 = 19,924.59/x
  3. Step 3: Cross multiply
    29,487.69x = 40,645.59 × 19,924.59
  4. Step 4: Simplify right side
    29,487.69x = 809,846,716.06
  5. Step 5: Solve for x
    x = 809,846,716.06/29,487.69
  6. Step 6: Final answer
    x = 27,463.89

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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.