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Finding the Fourth Proportional to 70,893.68, 97,835.06 and 39,062.56

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Solution

The fourth proportional to 70,893.68, 97,835.06 and 39,062.56 is: 53,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,893.68 : 97,835.06 = 39,062.56 : x
  2. Step 2: Convert to fraction form
    70,893.68/97,835.06 = 39,062.56/x
  3. Step 3: Cross multiply
    70,893.68x = 97,835.06 × 39,062.56
  4. Step 4: Simplify right side
    70,893.68x = 3,821,687,901.35
  5. Step 5: Solve for x
    x = 3,821,687,901.35/70,893.68
  6. Step 6: Final answer
    x = 53,907.31

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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.