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Finding the Fourth Proportional to 58,218.60, 87,356.70 and 33,277.80

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Solution

The fourth proportional to 58,218.60, 87,356.70 and 33,277.80 is: 49,933.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,218.60 : 87,356.70 = 33,277.80 : x
  2. Step 2: Convert to fraction form
    58,218.60/87,356.70 = 33,277.80/x
  3. Step 3: Cross multiply
    58,218.60x = 87,356.70 × 33,277.80
  4. Step 4: Simplify right side
    58,218.60x = 2,907,038,791.26
  5. Step 5: Solve for x
    x = 2,907,038,791.26/58,218.60
  6. Step 6: Final answer
    x = 49,933.16

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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.