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Finding the Fourth Proportional to 19,060.92, 28,578.61 and 7,360.47

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Solution

The fourth proportional to 19,060.92, 28,578.61 and 7,360.47 is: 11,035.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,060.92 : 28,578.61 = 7,360.47 : x
  2. Step 2: Convert to fraction form
    19,060.92/28,578.61 = 7,360.47/x
  3. Step 3: Cross multiply
    19,060.92x = 28,578.61 × 7,360.47
  4. Step 4: Simplify right side
    19,060.92x = 210,352,010.75
  5. Step 5: Solve for x
    x = 210,352,010.75/19,060.92
  6. Step 6: Final answer
    x = 11,035.77

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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.