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Finding the Fourth Proportional to 8,792.10, 13,188.81 and 2,948.70

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Solution

The fourth proportional to 8,792.10, 13,188.81 and 2,948.70 is: 4,423.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.10 : 13,188.81 = 2,948.70 : x
  2. Step 2: Convert to fraction form
    8,792.10/13,188.81 = 2,948.70/x
  3. Step 3: Cross multiply
    8,792.10x = 13,188.81 × 2,948.70
  4. Step 4: Simplify right side
    8,792.10x = 38,889,844.05
  5. Step 5: Solve for x
    x = 38,889,844.05/8,792.10
  6. Step 6: Final answer
    x = 4,423.27

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1.5x scale

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.