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Finding the Fourth Proportional to 29,672.88, 40,948.30 and 16,243.84

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Solution

The fourth proportional to 29,672.88, 40,948.30 and 16,243.84 is: 22,416.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,672.88 : 40,948.30 = 16,243.84 : x
  2. Step 2: Convert to fraction form
    29,672.88/40,948.30 = 16,243.84/x
  3. Step 3: Cross multiply
    29,672.88x = 40,948.30 × 16,243.84
  4. Step 4: Simplify right side
    29,672.88x = 665,157,633.47
  5. Step 5: Solve for x
    x = 665,157,633.47/29,672.88
  6. Step 6: Final answer
    x = 22,416.35

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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.