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Finding the Fourth Proportional to 23,880.60, 35,772.30 and 12,200.40

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Solution

The fourth proportional to 23,880.60, 35,772.30 and 12,200.40 is: 18,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,880.60 : 35,772.30 = 12,200.40 : x
  2. Step 2: Convert to fraction form
    23,880.60/35,772.30 = 12,200.40/x
  3. Step 3: Cross multiply
    23,880.60x = 35,772.30 × 12,200.40
  4. Step 4: Simplify right side
    23,880.60x = 436,436,368.92
  5. Step 5: Solve for x
    x = 436,436,368.92/23,880.60
  6. Step 6: Final answer
    x = 18,275.77

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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.