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Finding the Fourth Proportional to 64,683.52, 97,039.20 and 38,357.44

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Solution

The fourth proportional to 64,683.52, 97,039.20 and 38,357.44 is: 57,544.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,683.52 : 97,039.20 = 38,357.44 : x
  2. Step 2: Convert to fraction form
    64,683.52/97,039.20 = 38,357.44/x
  3. Step 3: Cross multiply
    64,683.52x = 97,039.20 × 38,357.44
  4. Step 4: Simplify right side
    64,683.52x = 3,722,175,291.65
  5. Step 5: Solve for x
    x = 3,722,175,291.65/64,683.52
  6. Step 6: Final answer
    x = 57,544.41

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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.