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Finding the Fourth Proportional to 9,293.70, 12,819.69 and 6,150.90

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Solution

The fourth proportional to 9,293.70, 12,819.69 and 6,150.90 is: 8,484.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,293.70 : 12,819.69 = 6,150.90 : x
  2. Step 2: Convert to fraction form
    9,293.70/12,819.69 = 6,150.90/x
  3. Step 3: Cross multiply
    9,293.70x = 12,819.69 × 6,150.90
  4. Step 4: Simplify right side
    9,293.70x = 78,852,631.22
  5. Step 5: Solve for x
    x = 78,852,631.22/9,293.70
  6. Step 6: Final answer
    x = 8,484.53

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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.