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Finding the Fourth Proportional to 19,261, 28,845.06 and 9,375.76

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Solution

The fourth proportional to 19,261, 28,845.06 and 9,375.76 is: 14,041.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261 : 28,845.06 = 9,375.76 : x
  2. Step 2: Convert to fraction form
    19,261/28,845.06 = 9,375.76/x
  3. Step 3: Cross multiply
    19,261x = 28,845.06 × 9,375.76
  4. Step 4: Simplify right side
    19,261x = 270,444,359.75
  5. Step 5: Solve for x
    x = 270,444,359.75/19,261
  6. Step 6: Final answer
    x = 14,041.03

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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.