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Finding the Fourth Proportional to 19,294.97, 28,942.13 and 6,147.16

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Solution

The fourth proportional to 19,294.97, 28,942.13 and 6,147.16 is: 9,220.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,294.97 : 28,942.13 = 6,147.16 : x
  2. Step 2: Convert to fraction form
    19,294.97/28,942.13 = 6,147.16/x
  3. Step 3: Cross multiply
    19,294.97x = 28,942.13 × 6,147.16
  4. Step 4: Simplify right side
    19,294.97x = 177,911,846.86
  5. Step 5: Solve for x
    x = 177,911,846.86/19,294.97
  6. Step 6: Final answer
    x = 9,220.64

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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.