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Finding the Fourth Proportional to 19,101.69, 28,652.46 and 10,777.92

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Solution

The fourth proportional to 19,101.69, 28,652.46 and 10,777.92 is: 16,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.69 : 28,652.46 = 10,777.92 : x
  2. Step 2: Convert to fraction form
    19,101.69/28,652.46 = 10,777.92/x
  3. Step 3: Cross multiply
    19,101.69x = 28,652.46 × 10,777.92
  4. Step 4: Simplify right side
    19,101.69x = 308,813,921.68
  5. Step 5: Solve for x
    x = 308,813,921.68/19,101.69
  6. Step 6: Final answer
    x = 16,166.84

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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.