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Finding the Fourth Proportional to 69,903.77, 96,471.59 and 39,677.58

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Solution

The fourth proportional to 69,903.77, 96,471.59 and 39,677.58 is: 54,757.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,903.77 : 96,471.59 = 39,677.58 : x
  2. Step 2: Convert to fraction form
    69,903.77/96,471.59 = 39,677.58/x
  3. Step 3: Cross multiply
    69,903.77x = 96,471.59 × 39,677.58
  4. Step 4: Simplify right side
    69,903.77x = 3,827,759,031.56
  5. Step 5: Solve for x
    x = 3,827,759,031.56/69,903.77
  6. Step 6: Final answer
    x = 54,757.55

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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.