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Finding the Fourth Proportional to 62,726.99, 86,579.84 and 38,840.09

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Solution

The fourth proportional to 62,726.99, 86,579.84 and 38,840.09 is: 53,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,726.99 : 86,579.84 = 38,840.09 : x
  2. Step 2: Convert to fraction form
    62,726.99/86,579.84 = 38,840.09/x
  3. Step 3: Cross multiply
    62,726.99x = 86,579.84 × 38,840.09
  4. Step 4: Simplify right side
    62,726.99x = 3,362,769,091.34
  5. Step 5: Solve for x
    x = 3,362,769,091.34/62,726.99
  6. Step 6: Final answer
    x = 53,609.60

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1.5x scale

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.