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Finding the Fourth Proportional to 19,166.53, 28,754.41 and 8,076.39

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Solution

The fourth proportional to 19,166.53, 28,754.41 and 8,076.39 is: 12,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.53 : 28,754.41 = 8,076.39 : x
  2. Step 2: Convert to fraction form
    19,166.53/28,754.41 = 8,076.39/x
  3. Step 3: Cross multiply
    19,166.53x = 28,754.41 × 8,076.39
  4. Step 4: Simplify right side
    19,166.53x = 232,231,809.19
  5. Step 5: Solve for x
    x = 232,231,809.19/19,166.53
  6. Step 6: Final answer
    x = 12,116.53

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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.