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Finding the Fourth Proportional to 29,858.76, 41,201.66 and 16,428.76

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Solution

The fourth proportional to 29,858.76, 41,201.66 and 16,428.76 is: 22,669.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,858.76 : 41,201.66 = 16,428.76 : x
  2. Step 2: Convert to fraction form
    29,858.76/41,201.66 = 16,428.76/x
  3. Step 3: Cross multiply
    29,858.76x = 41,201.66 × 16,428.76
  4. Step 4: Simplify right side
    29,858.76x = 676,892,121.81
  5. Step 5: Solve for x
    x = 676,892,121.81/29,858.76
  6. Step 6: Final answer
    x = 22,669.80

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1.5x scale

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.