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Finding the Fourth Proportional to 67,661.34, 101,490.81 and 23,287.11

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Solution

The fourth proportional to 67,661.34, 101,490.81 and 23,287.11 is: 34,930.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,661.34 : 101,490.81 = 23,287.11 : x
  2. Step 2: Convert to fraction form
    67,661.34/101,490.81 = 23,287.11/x
  3. Step 3: Cross multiply
    67,661.34x = 101,490.81 × 23,287.11
  4. Step 4: Simplify right side
    67,661.34x = 2,363,427,429.51
  5. Step 5: Solve for x
    x = 2,363,427,429.51/67,661.34
  6. Step 6: Final answer
    x = 34,930.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.