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Finding the Fourth Proportional to 8,200.70, 12,333.45 and 7,358.30

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Solution

The fourth proportional to 8,200.70, 12,333.45 and 7,358.30 is: 11,066.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,200.70 : 12,333.45 = 7,358.30 : x
  2. Step 2: Convert to fraction form
    8,200.70/12,333.45 = 7,358.30/x
  3. Step 3: Cross multiply
    8,200.70x = 12,333.45 × 7,358.30
  4. Step 4: Simplify right side
    8,200.70x = 90,753,225.14
  5. Step 5: Solve for x
    x = 90,753,225.14/8,200.70
  6. Step 6: Final answer
    x = 11,066.52

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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.