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Finding the Fourth Proportional to 64,396.48, 96,526.55 and 21,661.23

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Solution

The fourth proportional to 64,396.48, 96,526.55 and 21,661.23 is: 32,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,396.48 : 96,526.55 = 21,661.23 : x
  2. Step 2: Convert to fraction form
    64,396.48/96,526.55 = 21,661.23/x
  3. Step 3: Cross multiply
    64,396.48x = 96,526.55 × 21,661.23
  4. Step 4: Simplify right side
    64,396.48x = 2,090,883,370.99
  5. Step 5: Solve for x
    x = 2,090,883,370.99/64,396.48
  6. Step 6: Final answer
    x = 32,468.91

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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.