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Finding the Fourth Proportional to 67,338, 101,021.58 and 25,785

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Solution

The fourth proportional to 67,338, 101,021.58 and 25,785 is: 38,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,338 : 101,021.58 = 25,785 : x
  2. Step 2: Convert to fraction form
    67,338/101,021.58 = 25,785/x
  3. Step 3: Cross multiply
    67,338x = 101,021.58 × 25,785
  4. Step 4: Simplify right side
    67,338x = 2,604,841,440.30
  5. Step 5: Solve for x
    x = 2,604,841,440.30/67,338
  6. Step 6: Final answer
    x = 38,683.08

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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.