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Finding the Fourth Proportional to 29,211.64, 43,713.72 and 21,401.08

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Solution

The fourth proportional to 29,211.64, 43,713.72 and 21,401.08 is: 32,025.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,211.64 : 43,713.72 = 21,401.08 : x
  2. Step 2: Convert to fraction form
    29,211.64/43,713.72 = 21,401.08/x
  3. Step 3: Cross multiply
    29,211.64x = 43,713.72 × 21,401.08
  4. Step 4: Simplify right side
    29,211.64x = 935,520,818.82
  5. Step 5: Solve for x
    x = 935,520,818.82/29,211.64
  6. Step 6: Final answer
    x = 32,025.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.