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Finding the Fourth Proportional to 34,685.70, 47,866.62 and 18,770.52

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Solution

The fourth proportional to 34,685.70, 47,866.62 and 18,770.52 is: 25,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.70 : 47,866.62 = 18,770.52 : x
  2. Step 2: Convert to fraction form
    34,685.70/47,866.62 = 18,770.52/x
  3. Step 3: Cross multiply
    34,685.70x = 47,866.62 × 18,770.52
  4. Step 4: Simplify right side
    34,685.70x = 898,481,348.04
  5. Step 5: Solve for x
    x = 898,481,348.04/34,685.70
  6. Step 6: Final answer
    x = 25,903.51

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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.