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Finding the Fourth Proportional to 8,792.40, 13,183.80 and 3,592.40

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Solution

The fourth proportional to 8,792.40, 13,183.80 and 3,592.40 is: 5,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.40 : 13,183.80 = 3,592.40 : x
  2. Step 2: Convert to fraction form
    8,792.40/13,183.80 = 3,592.40/x
  3. Step 3: Cross multiply
    8,792.40x = 13,183.80 × 3,592.40
  4. Step 4: Simplify right side
    8,792.40x = 47,361,483.12
  5. Step 5: Solve for x
    x = 47,361,483.12/8,792.40
  6. Step 6: Final answer
    x = 5,386.64

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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.