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Finding the Fourth Proportional to 29,157.19, 40,240.46 and 16,415.15

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Solution

The fourth proportional to 29,157.19, 40,240.46 and 16,415.15 is: 22,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,157.19 : 40,240.46 = 16,415.15 : x
  2. Step 2: Convert to fraction form
    29,157.19/40,240.46 = 16,415.15/x
  3. Step 3: Cross multiply
    29,157.19x = 40,240.46 × 16,415.15
  4. Step 4: Simplify right side
    29,157.19x = 660,553,026.80
  5. Step 5: Solve for x
    x = 660,553,026.80/29,157.19
  6. Step 6: Final answer
    x = 22,654.90

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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.