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Finding the Fourth Proportional to 19,208.96, 28,824.96 and 6,897.92

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Solution

The fourth proportional to 19,208.96, 28,824.96 and 6,897.92 is: 10,351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,208.96 : 28,824.96 = 6,897.92 : x
  2. Step 2: Convert to fraction form
    19,208.96/28,824.96 = 6,897.92/x
  3. Step 3: Cross multiply
    19,208.96x = 28,824.96 × 6,897.92
  4. Step 4: Simplify right side
    19,208.96x = 198,832,268.08
  5. Step 5: Solve for x
    x = 198,832,268.08/19,208.96
  6. Step 6: Final answer
    x = 10,351.02

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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.