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Finding the Fourth Proportional to 70,706.05, 97,574.70 and 38,876.98

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Solution

The fourth proportional to 70,706.05, 97,574.70 and 38,876.98 is: 53,650.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,706.05 : 97,574.70 = 38,876.98 : x
  2. Step 2: Convert to fraction form
    70,706.05/97,574.70 = 38,876.98/x
  3. Step 3: Cross multiply
    70,706.05x = 97,574.70 × 38,876.98
  4. Step 4: Simplify right side
    70,706.05x = 3,793,409,660.41
  5. Step 5: Solve for x
    x = 3,793,409,660.41/70,706.05
  6. Step 6: Final answer
    x = 53,650.43

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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.