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Finding the Fourth Proportional to 19,229.70, 28,844.55 and 16,848.90

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Solution

The fourth proportional to 19,229.70, 28,844.55 and 16,848.90 is: 25,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.70 : 28,844.55 = 16,848.90 : x
  2. Step 2: Convert to fraction form
    19,229.70/28,844.55 = 16,848.90/x
  3. Step 3: Cross multiply
    19,229.70x = 28,844.55 × 16,848.90
  4. Step 4: Simplify right side
    19,229.70x = 485,998,938.50
  5. Step 5: Solve for x
    x = 485,998,938.50/19,229.70
  6. Step 6: Final answer
    x = 25,273.35

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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.