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Finding the Fourth Proportional to 70,806.67, 97,713.24 and 38,975.34

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Solution

The fourth proportional to 70,806.67, 97,713.24 and 38,975.34 is: 53,785.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,806.67 : 97,713.24 = 38,975.34 : x
  2. Step 2: Convert to fraction form
    70,806.67/97,713.24 = 38,975.34/x
  3. Step 3: Cross multiply
    70,806.67x = 97,713.24 × 38,975.34
  4. Step 4: Simplify right side
    70,806.67x = 3,808,406,971.77
  5. Step 5: Solve for x
    x = 3,808,406,971.77/70,806.67
  6. Step 6: Final answer
    x = 53,785.99

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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.