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Finding the Fourth Proportional to 64,289.87, 96,388.09 and 26,860.64

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Solution

The fourth proportional to 64,289.87, 96,388.09 and 26,860.64 is: 40,271.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,289.87 : 96,388.09 = 26,860.64 : x
  2. Step 2: Convert to fraction form
    64,289.87/96,388.09 = 26,860.64/x
  3. Step 3: Cross multiply
    64,289.87x = 96,388.09 × 26,860.64
  4. Step 4: Simplify right side
    64,289.87x = 2,589,046,244.51
  5. Step 5: Solve for x
    x = 2,589,046,244.51/64,289.87
  6. Step 6: Final answer
    x = 40,271.45

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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.