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Finding the Fourth Proportional to 35,227.70, 48,630.84 and 21,807.72

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Solution

The fourth proportional to 35,227.70, 48,630.84 and 21,807.72 is: 30,104.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,227.70 : 48,630.84 = 21,807.72 : x
  2. Step 2: Convert to fraction form
    35,227.70/48,630.84 = 21,807.72/x
  3. Step 3: Cross multiply
    35,227.70x = 48,630.84 × 21,807.72
  4. Step 4: Simplify right side
    35,227.70x = 1,060,527,742.08
  5. Step 5: Solve for x
    x = 1,060,527,742.08/35,227.70
  6. Step 6: Final answer
    x = 30,104.94

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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.