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Finding the Fourth Proportional to 5,981.60, 8,975.36 and 4,237.84

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Solution

The fourth proportional to 5,981.60, 8,975.36 and 4,237.84 is: 6,358.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,981.60 : 8,975.36 = 4,237.84 : x
  2. Step 2: Convert to fraction form
    5,981.60/8,975.36 = 4,237.84/x
  3. Step 3: Cross multiply
    5,981.60x = 8,975.36 × 4,237.84
  4. Step 4: Simplify right side
    5,981.60x = 38,036,139.62
  5. Step 5: Solve for x
    x = 38,036,139.62/5,981.60
  6. Step 6: Final answer
    x = 6,358.86

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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.