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Finding the Fourth Proportional to 70,703.26, 97,564.22 and 38,871.47

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Solution

The fourth proportional to 70,703.26, 97,564.22 and 38,871.47 is: 53,639.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,703.26 : 97,564.22 = 38,871.47 : x
  2. Step 2: Convert to fraction form
    70,703.26/97,564.22 = 38,871.47/x
  3. Step 3: Cross multiply
    70,703.26x = 97,564.22 × 38,871.47
  4. Step 4: Simplify right side
    70,703.26x = 3,792,464,650.80
  5. Step 5: Solve for x
    x = 3,792,464,650.80/70,703.26
  6. Step 6: Final answer
    x = 53,639.18

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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.