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Finding the Fourth Proportional to 29,612.88, 40,861.84 and 19,016.87

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Solution

The fourth proportional to 29,612.88, 40,861.84 and 19,016.87 is: 26,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,612.88 : 40,861.84 = 19,016.87 : x
  2. Step 2: Convert to fraction form
    29,612.88/40,861.84 = 19,016.87/x
  3. Step 3: Cross multiply
    29,612.88x = 40,861.84 × 19,016.87
  4. Step 4: Simplify right side
    29,612.88x = 777,064,197.09
  5. Step 5: Solve for x
    x = 777,064,197.09/29,612.88
  6. Step 6: Final answer
    x = 26,240.75

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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.