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Finding the Fourth Proportional to 15,104.48, 20,847.51 and 8,392.41

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Solution

The fourth proportional to 15,104.48, 20,847.51 and 8,392.41 is: 11,583.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.48 : 20,847.51 = 8,392.41 : x
  2. Step 2: Convert to fraction form
    15,104.48/20,847.51 = 8,392.41/x
  3. Step 3: Cross multiply
    15,104.48x = 20,847.51 × 8,392.41
  4. Step 4: Simplify right side
    15,104.48x = 174,960,851.40
  5. Step 5: Solve for x
    x = 174,960,851.40/15,104.48
  6. Step 6: Final answer
    x = 11,583.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.