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Finding the Fourth Proportional to 28,591.86, 42,904.11 and 22,334.31

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Solution

The fourth proportional to 28,591.86, 42,904.11 and 22,334.31 is: 33,514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,591.86 : 42,904.11 = 22,334.31 : x
  2. Step 2: Convert to fraction form
    28,591.86/42,904.11 = 22,334.31/x
  3. Step 3: Cross multiply
    28,591.86x = 42,904.11 × 22,334.31
  4. Step 4: Simplify right side
    28,591.86x = 958,233,693.01
  5. Step 5: Solve for x
    x = 958,233,693.01/28,591.86
  6. Step 6: Final answer
    x = 33,514.21

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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.