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Finding the Fourth Proportional to 19,156.92, 28,746.48 and 8,062.68

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Solution

The fourth proportional to 19,156.92, 28,746.48 and 8,062.68 is: 12,098.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.92 : 28,746.48 = 8,062.68 : x
  2. Step 2: Convert to fraction form
    19,156.92/28,746.48 = 8,062.68/x
  3. Step 3: Cross multiply
    19,156.92x = 28,746.48 × 8,062.68
  4. Step 4: Simplify right side
    19,156.92x = 231,773,669.37
  5. Step 5: Solve for x
    x = 231,773,669.37/19,156.92
  6. Step 6: Final answer
    x = 12,098.69

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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.