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Finding the Fourth Proportional to 64,396.53, 96,526.62 and 21,661.27

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Solution

The fourth proportional to 64,396.53, 96,526.62 and 21,661.27 is: 32,468.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,396.53 : 96,526.62 = 21,661.27 : x
  2. Step 2: Convert to fraction form
    64,396.53/96,526.62 = 21,661.27/x
  3. Step 3: Cross multiply
    64,396.53x = 96,526.62 × 21,661.27
  4. Step 4: Simplify right side
    64,396.53x = 2,090,889,509.22
  5. Step 5: Solve for x
    x = 2,090,889,509.22/64,396.53
  6. Step 6: Final answer
    x = 32,468.98

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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.