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Finding the Fourth Proportional to 34,674.66, 47,839.95 and 20,524.77

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Solution

The fourth proportional to 34,674.66, 47,839.95 and 20,524.77 is: 28,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,674.66 : 47,839.95 = 20,524.77 : x
  2. Step 2: Convert to fraction form
    34,674.66/47,839.95 = 20,524.77/x
  3. Step 3: Cross multiply
    34,674.66x = 47,839.95 × 20,524.77
  4. Step 4: Simplify right side
    34,674.66x = 981,903,970.56
  5. Step 5: Solve for x
    x = 981,903,970.56/34,674.66
  6. Step 6: Final answer
    x = 28,317.62

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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.