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Finding the Fourth Proportional to 14,794.92, 20,415.60 and 8,825.40

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Solution

The fourth proportional to 14,794.92, 20,415.60 and 8,825.40 is: 12,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,794.92 : 20,415.60 = 8,825.40 : x
  2. Step 2: Convert to fraction form
    14,794.92/20,415.60 = 8,825.40/x
  3. Step 3: Cross multiply
    14,794.92x = 20,415.60 × 8,825.40
  4. Step 4: Simplify right side
    14,794.92x = 180,175,836.24
  5. Step 5: Solve for x
    x = 180,175,836.24/14,794.92
  6. Step 6: Final answer
    x = 12,178.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.