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Finding the Fourth Proportional to 42,687.72, 64,011.63 and 24,923.51

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Solution

The fourth proportional to 42,687.72, 64,011.63 and 24,923.51 is: 37,373.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,687.72 : 64,011.63 = 24,923.51 : x
  2. Step 2: Convert to fraction form
    42,687.72/64,011.63 = 24,923.51/x
  3. Step 3: Cross multiply
    42,687.72x = 64,011.63 × 24,923.51
  4. Step 4: Simplify right side
    42,687.72x = 1,595,394,513.87
  5. Step 5: Solve for x
    x = 1,595,394,513.87/42,687.72
  6. Step 6: Final answer
    x = 37,373.62

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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.