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Finding the Fourth Proportional to 70,484.62, 97,271.58 and 38,654.66

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Solution

The fourth proportional to 70,484.62, 97,271.58 and 38,654.66 is: 53,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,484.62 : 97,271.58 = 38,654.66 : x
  2. Step 2: Convert to fraction form
    70,484.62/97,271.58 = 38,654.66/x
  3. Step 3: Cross multiply
    70,484.62x = 97,271.58 × 38,654.66
  4. Step 4: Simplify right side
    70,484.62x = 3,759,999,852.56
  5. Step 5: Solve for x
    x = 3,759,999,852.56/70,484.62
  6. Step 6: Final answer
    x = 53,344.97

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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.