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Finding the Fourth Proportional to 55,761.70, 76,916.14 and 33,084.64

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Solution

The fourth proportional to 55,761.70, 76,916.14 and 33,084.64 is: 45,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,761.70 : 76,916.14 = 33,084.64 : x
  2. Step 2: Convert to fraction form
    55,761.70/76,916.14 = 33,084.64/x
  3. Step 3: Cross multiply
    55,761.70x = 76,916.14 × 33,084.64
  4. Step 4: Simplify right side
    55,761.70x = 2,544,742,802.09
  5. Step 5: Solve for x
    x = 2,544,742,802.09/55,761.70
  6. Step 6: Final answer
    x = 45,636.03

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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.