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Finding the Fourth Proportional to 55,762.70, 76,917.52 and 33,085.64

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Solution

The fourth proportional to 55,762.70, 76,917.52 and 33,085.64 is: 45,637.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,762.70 : 76,917.52 = 33,085.64 : x
  2. Step 2: Convert to fraction form
    55,762.70/76,917.52 = 33,085.64/x
  3. Step 3: Cross multiply
    55,762.70x = 76,917.52 × 33,085.64
  4. Step 4: Simplify right side
    55,762.70x = 2,544,865,376.41
  5. Step 5: Solve for x
    x = 2,544,865,376.41/55,762.70
  6. Step 6: Final answer
    x = 45,637.41

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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.