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Finding the Fourth Proportional to 35,269.68, 48,673.68 and 21,119.82

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Solution

The fourth proportional to 35,269.68, 48,673.68 and 21,119.82 is: 29,146.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,269.68 : 48,673.68 = 21,119.82 : x
  2. Step 2: Convert to fraction form
    35,269.68/48,673.68 = 21,119.82/x
  3. Step 3: Cross multiply
    35,269.68x = 48,673.68 × 21,119.82
  4. Step 4: Simplify right side
    35,269.68x = 1,027,979,360.34
  5. Step 5: Solve for x
    x = 1,027,979,360.34/35,269.68
  6. Step 6: Final answer
    x = 29,146.26

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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.