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Finding the Fourth Proportional to 61,612.56, 85,047.12 and 36,462

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Solution

The fourth proportional to 61,612.56, 85,047.12 and 36,462 is: 50,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,612.56 : 85,047.12 = 36,462 : x
  2. Step 2: Convert to fraction form
    61,612.56/85,047.12 = 36,462/x
  3. Step 3: Cross multiply
    61,612.56x = 85,047.12 × 36,462
  4. Step 4: Simplify right side
    61,612.56x = 3,100,988,089.44
  5. Step 5: Solve for x
    x = 3,100,988,089.44/61,612.56
  6. Step 6: Final answer
    x = 50,330.45

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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.