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Finding the Fourth Proportional to 64,866.26, 97,296.78 and 20,495.54

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Solution

The fourth proportional to 64,866.26, 97,296.78 and 20,495.54 is: 30,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,866.26 : 97,296.78 = 20,495.54 : x
  2. Step 2: Convert to fraction form
    64,866.26/97,296.78 = 20,495.54/x
  3. Step 3: Cross multiply
    64,866.26x = 97,296.78 × 20,495.54
  4. Step 4: Simplify right side
    64,866.26x = 1,994,150,046.36
  5. Step 5: Solve for x
    x = 1,994,150,046.36/64,866.26
  6. Step 6: Final answer
    x = 30,742.49

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1.5x scale

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.