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Finding the Fourth Proportional to 67,785.54, 101,599.62 and 25,638.81

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Solution

The fourth proportional to 67,785.54, 101,599.62 and 25,638.81 is: 38,428.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,785.54 : 101,599.62 = 25,638.81 : x
  2. Step 2: Convert to fraction form
    67,785.54/101,599.62 = 25,638.81/x
  3. Step 3: Cross multiply
    67,785.54x = 101,599.62 × 25,638.81
  4. Step 4: Simplify right side
    67,785.54x = 2,604,893,353.25
  5. Step 5: Solve for x
    x = 2,604,893,353.25/67,785.54
  6. Step 6: Final answer
    x = 38,428.45

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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.