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Finding the Fourth Proportional to 70,579.02, 97,394.63 and 38,745.21

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Solution

The fourth proportional to 70,579.02, 97,394.63 and 38,745.21 is: 53,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,579.02 : 97,394.63 = 38,745.21 : x
  2. Step 2: Convert to fraction form
    70,579.02/97,394.63 = 38,745.21/x
  3. Step 3: Cross multiply
    70,579.02x = 97,394.63 × 38,745.21
  4. Step 4: Simplify right side
    70,579.02x = 3,773,575,198.50
  5. Step 5: Solve for x
    x = 3,773,575,198.50/70,579.02
  6. Step 6: Final answer
    x = 53,465.96

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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.