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Finding the Fourth Proportional to 28,646.98, 42,944.49 and 15,483.97

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Solution

The fourth proportional to 28,646.98, 42,944.49 and 15,483.97 is: 23,211.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.98 : 42,944.49 = 15,483.97 : x
  2. Step 2: Convert to fraction form
    28,646.98/42,944.49 = 15,483.97/x
  3. Step 3: Cross multiply
    28,646.98x = 42,944.49 × 15,483.97
  4. Step 4: Simplify right side
    28,646.98x = 664,951,248.51
  5. Step 5: Solve for x
    x = 664,951,248.51/28,646.98
  6. Step 6: Final answer
    x = 23,211.92

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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.