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Finding the Fourth Proportional to 35,073.81, 48,367.29 and 21,642.21

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Solution

The fourth proportional to 35,073.81, 48,367.29 and 21,642.21 is: 29,844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,073.81 : 48,367.29 = 21,642.21 : x
  2. Step 2: Convert to fraction form
    35,073.81/48,367.29 = 21,642.21/x
  3. Step 3: Cross multiply
    35,073.81x = 48,367.29 × 21,642.21
  4. Step 4: Simplify right side
    35,073.81x = 1,046,775,173.20
  5. Step 5: Solve for x
    x = 1,046,775,173.20/35,073.81
  6. Step 6: Final answer
    x = 29,844.92

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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.