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Finding the Fourth Proportional to 29,682.70, 40,962.12 and 16,254.79

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Solution

The fourth proportional to 29,682.70, 40,962.12 and 16,254.79 is: 22,431.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,682.70 : 40,962.12 = 16,254.79 : x
  2. Step 2: Convert to fraction form
    29,682.70/40,962.12 = 16,254.79/x
  3. Step 3: Cross multiply
    29,682.70x = 40,962.12 × 16,254.79
  4. Step 4: Simplify right side
    29,682.70x = 665,830,658.55
  5. Step 5: Solve for x
    x = 665,830,658.55/29,682.70
  6. Step 6: Final answer
    x = 22,431.61

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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.