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Finding the Fourth Proportional to 61,795.51, 85,281.54 and 34,940.58

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Solution

The fourth proportional to 61,795.51, 85,281.54 and 34,940.58 is: 48,220.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,795.51 : 85,281.54 = 34,940.58 : x
  2. Step 2: Convert to fraction form
    61,795.51/85,281.54 = 34,940.58/x
  3. Step 3: Cross multiply
    61,795.51x = 85,281.54 × 34,940.58
  4. Step 4: Simplify right side
    61,795.51x = 2,979,786,470.89
  5. Step 5: Solve for x
    x = 2,979,786,470.89/61,795.51
  6. Step 6: Final answer
    x = 48,220.11

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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.