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Finding the Fourth Proportional to 19,891.44, 29,837.16 and 10,039.05

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Solution

The fourth proportional to 19,891.44, 29,837.16 and 10,039.05 is: 15,058.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.44 : 29,837.16 = 10,039.05 : x
  2. Step 2: Convert to fraction form
    19,891.44/29,837.16 = 10,039.05/x
  3. Step 3: Cross multiply
    19,891.44x = 29,837.16 × 10,039.05
  4. Step 4: Simplify right side
    19,891.44x = 299,536,741.10
  5. Step 5: Solve for x
    x = 299,536,741.10/19,891.44
  6. Step 6: Final answer
    x = 15,058.58

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Similar ratio
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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.