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Finding the Fourth Proportional to 70,672.70, 97,530.18 and 38,842.44

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Solution

The fourth proportional to 70,672.70, 97,530.18 and 38,842.44 is: 53,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,672.70 : 97,530.18 = 38,842.44 : x
  2. Step 2: Convert to fraction form
    70,672.70/97,530.18 = 38,842.44/x
  3. Step 3: Cross multiply
    70,672.70x = 97,530.18 × 38,842.44
  4. Step 4: Simplify right side
    70,672.70x = 3,788,309,653.44
  5. Step 5: Solve for x
    x = 3,788,309,653.44/70,672.70
  6. Step 6: Final answer
    x = 53,603.58

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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.