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Finding the Fourth Proportional to 58,788.68, 81,126.78 and 33,636.56

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Solution

The fourth proportional to 58,788.68, 81,126.78 and 33,636.56 is: 46,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,788.68 : 81,126.78 = 33,636.56 : x
  2. Step 2: Convert to fraction form
    58,788.68/81,126.78 = 33,636.56/x
  3. Step 3: Cross multiply
    58,788.68x = 81,126.78 × 33,636.56
  4. Step 4: Simplify right side
    58,788.68x = 2,728,825,803.08
  5. Step 5: Solve for x
    x = 2,728,825,803.08/58,788.68
  6. Step 6: Final answer
    x = 46,417.54

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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.