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Finding the Fourth Proportional to 29,818.88, 41,150.06 and 16,391

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Solution

The fourth proportional to 29,818.88, 41,150.06 and 16,391 is: 22,619.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,818.88 : 41,150.06 = 16,391 : x
  2. Step 2: Convert to fraction form
    29,818.88/41,150.06 = 16,391/x
  3. Step 3: Cross multiply
    29,818.88x = 41,150.06 × 16,391
  4. Step 4: Simplify right side
    29,818.88x = 674,490,633.46
  5. Step 5: Solve for x
    x = 674,490,633.46/29,818.88
  6. Step 6: Final answer
    x = 22,619.58

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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.