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Finding the Fourth Proportional to 9,358.63, 12,912.68 and 5,819.94

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Solution

The fourth proportional to 9,358.63, 12,912.68 and 5,819.94 is: 8,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.63 : 12,912.68 = 5,819.94 : x
  2. Step 2: Convert to fraction form
    9,358.63/12,912.68 = 5,819.94/x
  3. Step 3: Cross multiply
    9,358.63x = 12,912.68 × 5,819.94
  4. Step 4: Simplify right side
    9,358.63x = 75,151,037.39
  5. Step 5: Solve for x
    x = 75,151,037.39/9,358.63
  6. Step 6: Final answer
    x = 8,030.13

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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.