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Finding the Fourth Proportional to 28,514.76, 42,772.71 and 8,793.33

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Solution

The fourth proportional to 28,514.76, 42,772.71 and 8,793.33 is: 13,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,514.76 : 42,772.71 = 8,793.33 : x
  2. Step 2: Convert to fraction form
    28,514.76/42,772.71 = 8,793.33/x
  3. Step 3: Cross multiply
    28,514.76x = 42,772.71 × 8,793.33
  4. Step 4: Simplify right side
    28,514.76x = 376,114,587.00
  5. Step 5: Solve for x
    x = 376,114,587.00/28,514.76
  6. Step 6: Final answer
    x = 13,190.17

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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.