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Finding the Fourth Proportional to 35,379.01, 48,823.03 and 21,231.87

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Solution

The fourth proportional to 35,379.01, 48,823.03 and 21,231.87 is: 29,299.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,379.01 : 48,823.03 = 21,231.87 : x
  2. Step 2: Convert to fraction form
    35,379.01/48,823.03 = 21,231.87/x
  3. Step 3: Cross multiply
    35,379.01x = 48,823.03 × 21,231.87
  4. Step 4: Simplify right side
    35,379.01x = 1,036,604,225.97
  5. Step 5: Solve for x
    x = 1,036,604,225.97/35,379.01
  6. Step 6: Final answer
    x = 29,299.98

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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.