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Finding the Fourth Proportional to 57,913.84, 87,015.84 and 36,862.84

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Solution

The fourth proportional to 57,913.84, 87,015.84 and 36,862.84 is: 55,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,913.84 : 87,015.84 = 36,862.84 : x
  2. Step 2: Convert to fraction form
    57,913.84/87,015.84 = 36,862.84/x
  3. Step 3: Cross multiply
    57,913.84x = 87,015.84 × 36,862.84
  4. Step 4: Simplify right side
    57,913.84x = 3,207,650,987.39
  5. Step 5: Solve for x
    x = 3,207,650,987.39/57,913.84
  6. Step 6: Final answer
    x = 55,386.61

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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.