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Finding the Fourth Proportional to 28,787,264.80, 43,204,516.80 and 27,842,480.80

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Solution

The fourth proportional to 28,787,264.80, 43,204,516.80 and 27,842,480.80 is: 41,786,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,787,264.80 : 43,204,516.80 = 27,842,480.80 : x
  2. Step 2: Convert to fraction form
    28,787,264.80/43,204,516.80 = 27,842,480.80/x
  3. Step 3: Cross multiply
    28,787,264.80x = 43,204,516.80 × 27,842,480.80
  4. Step 4: Simplify right side
    28,787,264.80x = 1,202,920,929,477,277.50
  5. Step 5: Solve for x
    x = 1,202,920,929,477,277.50/28,787,264.80
  6. Step 6: Final answer
    x = 41,786,565.62

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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.