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Finding the Fourth Proportional to 46,649.80, 69,974.70 and 40,817.80

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Solution

The fourth proportional to 46,649.80, 69,974.70 and 40,817.80 is: 61,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,649.80 : 69,974.70 = 40,817.80 : x
  2. Step 2: Convert to fraction form
    46,649.80/69,974.70 = 40,817.80/x
  3. Step 3: Cross multiply
    46,649.80x = 69,974.70 × 40,817.80
  4. Step 4: Simplify right side
    46,649.80x = 2,856,213,309.66
  5. Step 5: Solve for x
    x = 2,856,213,309.66/46,649.80
  6. Step 6: Final answer
    x = 61,226.70

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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.