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Finding the Fourth Proportional to 37,651.50, 51,960.15 and 20,885.58

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Solution

The fourth proportional to 37,651.50, 51,960.15 and 20,885.58 is: 28,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,651.50 : 51,960.15 = 20,885.58 : x
  2. Step 2: Convert to fraction form
    37,651.50/51,960.15 = 20,885.58/x
  3. Step 3: Cross multiply
    37,651.50x = 51,960.15 × 20,885.58
  4. Step 4: Simplify right side
    37,651.50x = 1,085,217,869.64
  5. Step 5: Solve for x
    x = 1,085,217,869.64/37,651.50
  6. Step 6: Final answer
    x = 28,822.70

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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.