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Finding the Fourth Proportional to 8,602.66, 11,869.49 and 5,245.16

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Solution

The fourth proportional to 8,602.66, 11,869.49 and 5,245.16 is: 7,236.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,602.66 : 11,869.49 = 5,245.16 : x
  2. Step 2: Convert to fraction form
    8,602.66/11,869.49 = 5,245.16/x
  3. Step 3: Cross multiply
    8,602.66x = 11,869.49 × 5,245.16
  4. Step 4: Simplify right side
    8,602.66x = 62,257,298.43
  5. Step 5: Solve for x
    x = 62,257,298.43/8,602.66
  6. Step 6: Final answer
    x = 7,236.99

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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.