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Finding the Fourth Proportional to 40,907.80, 61,361.70 and 24,286.60

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Solution

The fourth proportional to 40,907.80, 61,361.70 and 24,286.60 is: 36,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,907.80 : 61,361.70 = 24,286.60 : x
  2. Step 2: Convert to fraction form
    40,907.80/61,361.70 = 24,286.60/x
  3. Step 3: Cross multiply
    40,907.80x = 61,361.70 × 24,286.60
  4. Step 4: Simplify right side
    40,907.80x = 1,490,267,063.22
  5. Step 5: Solve for x
    x = 1,490,267,063.22/40,907.80
  6. Step 6: Final answer
    x = 36,429.90

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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.