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Finding the Fourth Proportional to 29,386, 40,553.60 and 16,638.98

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Solution

The fourth proportional to 29,386, 40,553.60 and 16,638.98 is: 22,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,386 : 40,553.60 = 16,638.98 : x
  2. Step 2: Convert to fraction form
    29,386/40,553.60 = 16,638.98/x
  3. Step 3: Cross multiply
    29,386x = 40,553.60 × 16,638.98
  4. Step 4: Simplify right side
    29,386x = 674,770,539.33
  5. Step 5: Solve for x
    x = 674,770,539.33/29,386
  6. Step 6: Final answer
    x = 22,962.31

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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.