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Finding the Fourth Proportional to 69,869.69, 96,420.57 and 38,038.52

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Solution

The fourth proportional to 69,869.69, 96,420.57 and 38,038.52 is: 52,493.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,869.69 : 96,420.57 = 38,038.52 : x
  2. Step 2: Convert to fraction form
    69,869.69/96,420.57 = 38,038.52/x
  3. Step 3: Cross multiply
    69,869.69x = 96,420.57 × 38,038.52
  4. Step 4: Simplify right side
    69,869.69x = 3,667,695,298.25
  5. Step 5: Solve for x
    x = 3,667,695,298.25/69,869.69
  6. Step 6: Final answer
    x = 52,493.37

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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.