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Finding the Fourth Proportional to 64,919.79, 97,384.14 and 38,304.69

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Solution

The fourth proportional to 64,919.79, 97,384.14 and 38,304.69 is: 57,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,919.79 : 97,384.14 = 38,304.69 : x
  2. Step 2: Convert to fraction form
    64,919.79/97,384.14 = 38,304.69/x
  3. Step 3: Cross multiply
    64,919.79x = 97,384.14 × 38,304.69
  4. Step 4: Simplify right side
    64,919.79x = 3,730,269,293.62
  5. Step 5: Solve for x
    x = 3,730,269,293.62/64,919.79
  6. Step 6: Final answer
    x = 57,459.66

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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.