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Finding the Fourth Proportional to 8,793.40, 13,173.90 and 8,210.20

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Solution

The fourth proportional to 8,793.40, 13,173.90 and 8,210.20 is: 12,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.40 : 13,173.90 = 8,210.20 : x
  2. Step 2: Convert to fraction form
    8,793.40/13,173.90 = 8,210.20/x
  3. Step 3: Cross multiply
    8,793.40x = 13,173.90 × 8,210.20
  4. Step 4: Simplify right side
    8,793.40x = 108,160,353.78
  5. Step 5: Solve for x
    x = 108,160,353.78/8,793.40
  6. Step 6: Final answer
    x = 12,300.17

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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.