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Finding the Fourth Proportional to 64,812.60, 97,073.10 and 38,568.60

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Solution

The fourth proportional to 64,812.60, 97,073.10 and 38,568.60 is: 57,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,812.60 : 97,073.10 = 38,568.60 : x
  2. Step 2: Convert to fraction form
    64,812.60/97,073.10 = 38,568.60/x
  3. Step 3: Cross multiply
    64,812.60x = 97,073.10 × 38,568.60
  4. Step 4: Simplify right side
    64,812.60x = 3,743,973,564.66
  5. Step 5: Solve for x
    x = 3,743,973,564.66/64,812.60
  6. Step 6: Final answer
    x = 57,766.14

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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.