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Finding the Fourth Proportional to 64,558.71, 96,843.65 and 17,811.59

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Solution

The fourth proportional to 64,558.71, 96,843.65 and 17,811.59 is: 26,718.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,558.71 : 96,843.65 = 17,811.59 : x
  2. Step 2: Convert to fraction form
    64,558.71/96,843.65 = 17,811.59/x
  3. Step 3: Cross multiply
    64,558.71x = 96,843.65 × 17,811.59
  4. Step 4: Simplify right side
    64,558.71x = 1,724,938,814.63
  5. Step 5: Solve for x
    x = 1,724,938,814.63/64,558.71
  6. Step 6: Final answer
    x = 26,718.92

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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.