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Finding the Fourth Proportional to 70,299.07, 97,012.72 and 38,467.97

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Solution

The fourth proportional to 70,299.07, 97,012.72 and 38,467.97 is: 53,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,299.07 : 97,012.72 = 38,467.97 : x
  2. Step 2: Convert to fraction form
    70,299.07/97,012.72 = 38,467.97/x
  3. Step 3: Cross multiply
    70,299.07x = 97,012.72 × 38,467.97
  4. Step 4: Simplify right side
    70,299.07x = 3,731,882,185.14
  5. Step 5: Solve for x
    x = 3,731,882,185.14/70,299.07
  6. Step 6: Final answer
    x = 53,085.80

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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.