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Finding the Fourth Proportional to 66,958.61, 92,407.41 and 38,664.27

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Solution

The fourth proportional to 66,958.61, 92,407.41 and 38,664.27 is: 53,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,958.61 : 92,407.41 = 38,664.27 : x
  2. Step 2: Convert to fraction form
    66,958.61/92,407.41 = 38,664.27/x
  3. Step 3: Cross multiply
    66,958.61x = 92,407.41 × 38,664.27
  4. Step 4: Simplify right side
    66,958.61x = 3,572,865,050.24
  5. Step 5: Solve for x
    x = 3,572,865,050.24/66,958.61
  6. Step 6: Final answer
    x = 53,359.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.