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Finding the Fourth Proportional to 35,423, 48,883.46 and 21,092.66

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Solution

The fourth proportional to 35,423, 48,883.46 and 21,092.66 is: 29,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,423 : 48,883.46 = 21,092.66 : x
  2. Step 2: Convert to fraction form
    35,423/48,883.46 = 21,092.66/x
  3. Step 3: Cross multiply
    35,423x = 48,883.46 × 21,092.66
  4. Step 4: Simplify right side
    35,423x = 1,031,082,201.40
  5. Step 5: Solve for x
    x = 1,031,082,201.40/35,423
  6. Step 6: Final answer
    x = 29,107.70

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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.