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Finding the Fourth Proportional to 8,612.52, 11,885.01 and 4,835.61

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Solution

The fourth proportional to 8,612.52, 11,885.01 and 4,835.61 is: 6,672.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.52 : 11,885.01 = 4,835.61 : x
  2. Step 2: Convert to fraction form
    8,612.52/11,885.01 = 4,835.61/x
  3. Step 3: Cross multiply
    8,612.52x = 11,885.01 × 4,835.61
  4. Step 4: Simplify right side
    8,612.52x = 57,471,273.21
  5. Step 5: Solve for x
    x = 57,471,273.21/8,612.52
  6. Step 6: Final answer
    x = 6,672.99

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Double scale
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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.