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Finding the Fourth Proportional to 43,841.36, 65,706.68 and 28,040.40

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Solution

The fourth proportional to 43,841.36, 65,706.68 and 28,040.40 is: 42,025.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,841.36 : 65,706.68 = 28,040.40 : x
  2. Step 2: Convert to fraction form
    43,841.36/65,706.68 = 28,040.40/x
  3. Step 3: Cross multiply
    43,841.36x = 65,706.68 × 28,040.40
  4. Step 4: Simplify right side
    43,841.36x = 1,842,441,589.87
  5. Step 5: Solve for x
    x = 1,842,441,589.87/43,841.36
  6. Step 6: Final answer
    x = 42,025.19

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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.