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Finding the Fourth Proportional to 64,965.42, 97,480.45 and 36,484.71

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Solution

The fourth proportional to 64,965.42, 97,480.45 and 36,484.71 is: 54,745.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,965.42 : 97,480.45 = 36,484.71 : x
  2. Step 2: Convert to fraction form
    64,965.42/97,480.45 = 36,484.71/x
  3. Step 3: Cross multiply
    64,965.42x = 97,480.45 × 36,484.71
  4. Step 4: Simplify right side
    64,965.42x = 3,556,545,628.97
  5. Step 5: Solve for x
    x = 3,556,545,628.97/64,965.42
  6. Step 6: Final answer
    x = 54,745.21

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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.