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Finding the Fourth Proportional to 35,892.18, 53,863.11 and 20,924.10

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Solution

The fourth proportional to 35,892.18, 53,863.11 and 20,924.10 is: 31,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,892.18 : 53,863.11 = 20,924.10 : x
  2. Step 2: Convert to fraction form
    35,892.18/53,863.11 = 20,924.10/x
  3. Step 3: Cross multiply
    35,892.18x = 53,863.11 × 20,924.10
  4. Step 4: Simplify right side
    35,892.18x = 1,127,037,099.95
  5. Step 5: Solve for x
    x = 1,127,037,099.95/35,892.18
  6. Step 6: Final answer
    x = 31,400.63

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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.