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Finding the Fourth Proportional to 19,008.96, 28,511.52 and 6,696

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Solution

The fourth proportional to 19,008.96, 28,511.52 and 6,696 is: 10,043.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.96 : 28,511.52 = 6,696 : x
  2. Step 2: Convert to fraction form
    19,008.96/28,511.52 = 6,696/x
  3. Step 3: Cross multiply
    19,008.96x = 28,511.52 × 6,696
  4. Step 4: Simplify right side
    19,008.96x = 190,913,137.92
  5. Step 5: Solve for x
    x = 190,913,137.92/19,008.96
  6. Step 6: Final answer
    x = 10,043.32

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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.