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Finding the Fourth Proportional to 52,693.74, 78,996.87 and 36,012.40

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Solution

The fourth proportional to 52,693.74, 78,996.87 and 36,012.40 is: 53,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,693.74 : 78,996.87 = 36,012.40 : x
  2. Step 2: Convert to fraction form
    52,693.74/78,996.87 = 36,012.40/x
  3. Step 3: Cross multiply
    52,693.74x = 78,996.87 × 36,012.40
  4. Step 4: Simplify right side
    52,693.74x = 2,844,866,683.70
  5. Step 5: Solve for x
    x = 2,844,866,683.70/52,693.74
  6. Step 6: Final answer
    x = 53,988.70

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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.