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Finding the Fourth Proportional to 19,229.95, 28,844.93 and 8,133.76

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Solution

The fourth proportional to 19,229.95, 28,844.93 and 8,133.76 is: 12,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.95 : 28,844.93 = 8,133.76 : x
  2. Step 2: Convert to fraction form
    19,229.95/28,844.93 = 8,133.76/x
  3. Step 3: Cross multiply
    19,229.95x = 28,844.93 × 8,133.76
  4. Step 4: Simplify right side
    19,229.95x = 234,617,737.84
  5. Step 5: Solve for x
    x = 234,617,737.84/19,229.95
  6. Step 6: Final answer
    x = 12,200.64

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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.