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Finding the Fourth Proportional to 64,855.11, 97,312.23 and 33,287.34

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Solution

The fourth proportional to 64,855.11, 97,312.23 and 33,287.34 is: 49,946.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,855.11 : 97,312.23 = 33,287.34 : x
  2. Step 2: Convert to fraction form
    64,855.11/97,312.23 = 33,287.34/x
  3. Step 3: Cross multiply
    64,855.11x = 97,312.23 × 33,287.34
  4. Step 4: Simplify right side
    64,855.11x = 3,239,265,286.17
  5. Step 5: Solve for x
    x = 3,239,265,286.17/64,855.11
  6. Step 6: Final answer
    x = 49,946.18

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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.