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Finding the Fourth Proportional to 29,571.89, 40,808.96 and 16,142.95

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Solution

The fourth proportional to 29,571.89, 40,808.96 and 16,142.95 is: 22,277.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,571.89 : 40,808.96 = 16,142.95 : x
  2. Step 2: Convert to fraction form
    29,571.89/40,808.96 = 16,142.95/x
  3. Step 3: Cross multiply
    29,571.89x = 40,808.96 × 16,142.95
  4. Step 4: Simplify right side
    29,571.89x = 658,776,892.92
  5. Step 5: Solve for x
    x = 658,776,892.92/29,571.89
  6. Step 6: Final answer
    x = 22,277.14

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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.