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Finding the Fourth Proportional to 70,806.03, 97,712.37 and 38,975.46

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Solution

The fourth proportional to 70,806.03, 97,712.37 and 38,975.46 is: 53,786.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,806.03 : 97,712.37 = 38,975.46 : x
  2. Step 2: Convert to fraction form
    70,806.03/97,712.37 = 38,975.46/x
  3. Step 3: Cross multiply
    70,806.03x = 97,712.37 × 38,975.46
  4. Step 4: Simplify right side
    70,806.03x = 3,808,384,568.44
  5. Step 5: Solve for x
    x = 3,808,384,568.44/70,806.03
  6. Step 6: Final answer
    x = 53,786.16

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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.