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Finding the Fourth Proportional to 50,487.78, 69,667.11 and 29,264.16

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Solution

The fourth proportional to 50,487.78, 69,667.11 and 29,264.16 is: 40,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,487.78 : 69,667.11 = 29,264.16 : x
  2. Step 2: Convert to fraction form
    50,487.78/69,667.11 = 29,264.16/x
  3. Step 3: Cross multiply
    50,487.78x = 69,667.11 × 29,264.16
  4. Step 4: Simplify right side
    50,487.78x = 2,038,749,453.78
  5. Step 5: Solve for x
    x = 2,038,749,453.78/50,487.78
  6. Step 6: Final answer
    x = 40,381.05

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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.