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Finding the Fourth Proportional to 70,666.08, 97,520.88 and 38,838

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Solution

The fourth proportional to 70,666.08, 97,520.88 and 38,838 is: 53,597.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.08 : 97,520.88 = 38,838 : x
  2. Step 2: Convert to fraction form
    70,666.08/97,520.88 = 38,838/x
  3. Step 3: Cross multiply
    70,666.08x = 97,520.88 × 38,838
  4. Step 4: Simplify right side
    70,666.08x = 3,787,515,937.44
  5. Step 5: Solve for x
    x = 3,787,515,937.44/70,666.08
  6. Step 6: Final answer
    x = 53,597.37

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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.