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Finding the Fourth Proportional to 45,219.32, 67,804.13 and 35,918.90

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Solution

The fourth proportional to 45,219.32, 67,804.13 and 35,918.90 is: 53,858.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,219.32 : 67,804.13 = 35,918.90 : x
  2. Step 2: Convert to fraction form
    45,219.32/67,804.13 = 35,918.90/x
  3. Step 3: Cross multiply
    45,219.32x = 67,804.13 × 35,918.90
  4. Step 4: Simplify right side
    45,219.32x = 2,435,449,515.83
  5. Step 5: Solve for x
    x = 2,435,449,515.83/45,219.32
  6. Step 6: Final answer
    x = 53,858.61

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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.