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Finding the Fourth Proportional to 29,449.67, 40,619.82 and 19,374.89

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Solution

The fourth proportional to 29,449.67, 40,619.82 and 19,374.89 is: 26,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,449.67 : 40,619.82 = 19,374.89 : x
  2. Step 2: Convert to fraction form
    29,449.67/40,619.82 = 19,374.89/x
  3. Step 3: Cross multiply
    29,449.67x = 40,619.82 × 19,374.89
  4. Step 4: Simplify right side
    29,449.67x = 787,004,341.22
  5. Step 5: Solve for x
    x = 787,004,341.22/29,449.67
  6. Step 6: Final answer
    x = 26,723.71

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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.