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Finding the Fourth Proportional to 61,671.01, 85,105.40 and 34,812.94

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Solution

The fourth proportional to 61,671.01, 85,105.40 and 34,812.94 is: 48,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,671.01 : 85,105.40 = 34,812.94 : x
  2. Step 2: Convert to fraction form
    61,671.01/85,105.40 = 34,812.94/x
  3. Step 3: Cross multiply
    61,671.01x = 85,105.40 × 34,812.94
  4. Step 4: Simplify right side
    61,671.01x = 2,962,769,005.58
  5. Step 5: Solve for x
    x = 2,962,769,005.58/61,671.01
  6. Step 6: Final answer
    x = 48,041.52

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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.