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Finding the Fourth Proportional to 64,558.53, 96,843.37 and 17,811.40

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Solution

The fourth proportional to 64,558.53, 96,843.37 and 17,811.40 is: 26,718.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,558.53 : 96,843.37 = 17,811.40 : x
  2. Step 2: Convert to fraction form
    64,558.53/96,843.37 = 17,811.40/x
  3. Step 3: Cross multiply
    64,558.53x = 96,843.37 × 17,811.40
  4. Step 4: Simplify right side
    64,558.53x = 1,724,916,000.42
  5. Step 5: Solve for x
    x = 1,724,916,000.42/64,558.53
  6. Step 6: Final answer
    x = 26,718.64

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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.