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Finding the Fourth Proportional to 42,799.95, 64,195.07 and 16,502.49

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Solution

The fourth proportional to 42,799.95, 64,195.07 and 16,502.49 is: 24,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,799.95 : 64,195.07 = 16,502.49 : x
  2. Step 2: Convert to fraction form
    42,799.95/64,195.07 = 16,502.49/x
  3. Step 3: Cross multiply
    42,799.95x = 64,195.07 × 16,502.49
  4. Step 4: Simplify right side
    42,799.95x = 1,059,378,418.21
  5. Step 5: Solve for x
    x = 1,059,378,418.21/42,799.95
  6. Step 6: Final answer
    x = 24,751.86

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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.