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Finding the Fourth Proportional to 69,282.95, 103,851.86 and 39,259.76

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Solution

The fourth proportional to 69,282.95, 103,851.86 and 39,259.76 is: 58,848.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,282.95 : 103,851.86 = 39,259.76 : x
  2. Step 2: Convert to fraction form
    69,282.95/103,851.86 = 39,259.76/x
  3. Step 3: Cross multiply
    69,282.95x = 103,851.86 × 39,259.76
  4. Step 4: Simplify right side
    69,282.95x = 4,077,198,383.60
  5. Step 5: Solve for x
    x = 4,077,198,383.60/69,282.95
  6. Step 6: Final answer
    x = 58,848.51

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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.