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Finding the Fourth Proportional to 64,706.73, 97,064.28 and 20,335.34

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Solution

The fourth proportional to 64,706.73, 97,064.28 and 20,335.34 is: 30,504.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.73 : 97,064.28 = 20,335.34 : x
  2. Step 2: Convert to fraction form
    64,706.73/97,064.28 = 20,335.34/x
  3. Step 3: Cross multiply
    64,706.73x = 97,064.28 × 20,335.34
  4. Step 4: Simplify right side
    64,706.73x = 1,973,834,650.33
  5. Step 5: Solve for x
    x = 1,973,834,650.33/64,706.73
  6. Step 6: Final answer
    x = 30,504.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.