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Finding the Fourth Proportional to 70,492.82, 97,282.23 and 38,663.87

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Solution

The fourth proportional to 70,492.82, 97,282.23 and 38,663.87 is: 53,357.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,492.82 : 97,282.23 = 38,663.87 : x
  2. Step 2: Convert to fraction form
    70,492.82/97,282.23 = 38,663.87/x
  3. Step 3: Cross multiply
    70,492.82x = 97,282.23 × 38,663.87
  4. Step 4: Simplify right side
    70,492.82x = 3,761,307,494.03
  5. Step 5: Solve for x
    x = 3,761,307,494.03/70,492.82
  6. Step 6: Final answer
    x = 53,357.31

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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.