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Finding the Fourth Proportional to 63,828.79, 87,893.57 and 62,412.66

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Solution

The fourth proportional to 63,828.79, 87,893.57 and 62,412.66 is: 85,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,828.79 : 87,893.57 = 62,412.66 : x
  2. Step 2: Convert to fraction form
    63,828.79/87,893.57 = 62,412.66/x
  3. Step 3: Cross multiply
    63,828.79x = 87,893.57 × 62,412.66
  4. Step 4: Simplify right side
    63,828.79x = 5,485,671,656.63
  5. Step 5: Solve for x
    x = 5,485,671,656.63/63,828.79
  6. Step 6: Final answer
    x = 85,943.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.