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Finding the Fourth Proportional to 61,917.84, 85,440.71 and 35,055.11

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Solution

The fourth proportional to 61,917.84, 85,440.71 and 35,055.11 is: 48,372.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,917.84 : 85,440.71 = 35,055.11 : x
  2. Step 2: Convert to fraction form
    61,917.84/85,440.71 = 35,055.11/x
  3. Step 3: Cross multiply
    61,917.84x = 85,440.71 × 35,055.11
  4. Step 4: Simplify right side
    61,917.84x = 2,995,132,885.05
  5. Step 5: Solve for x
    x = 2,995,132,885.05/61,917.84
  6. Step 6: Final answer
    x = 48,372.70

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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.