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Finding the Fourth Proportional to 62,805.51, 93,991.02 and 38,779.94

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Solution

The fourth proportional to 62,805.51, 93,991.02 and 38,779.94 is: 58,035.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,805.51 : 93,991.02 = 38,779.94 : x
  2. Step 2: Convert to fraction form
    62,805.51/93,991.02 = 38,779.94/x
  3. Step 3: Cross multiply
    62,805.51x = 93,991.02 × 38,779.94
  4. Step 4: Simplify right side
    62,805.51x = 3,644,965,646.18
  5. Step 5: Solve for x
    x = 3,644,965,646.18/62,805.51
  6. Step 6: Final answer
    x = 58,035.76

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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.