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Finding the Fourth Proportional to 61,917.66, 85,446.71 and 35,065.40

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Solution

The fourth proportional to 61,917.66, 85,446.71 and 35,065.40 is: 48,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.66 : 85,446.71 = 35,065.40 : x
  2. Step 2: Convert to fraction form
    61,917.66/85,446.71 = 35,065.40/x
  3. Step 3: Cross multiply
    61,917.66x = 85,446.71 × 35,065.40
  4. Step 4: Simplify right side
    61,917.66x = 2,996,222,462.27
  5. Step 5: Solve for x
    x = 2,996,222,462.27/61,917.66
  6. Step 6: Final answer
    x = 48,390.43

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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.