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Finding the Fourth Proportional to 8,246.76, 11,380.28 and 4,709.28

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Solution

The fourth proportional to 8,246.76, 11,380.28 and 4,709.28 is: 6,498.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.76 : 11,380.28 = 4,709.28 : x
  2. Step 2: Convert to fraction form
    8,246.76/11,380.28 = 4,709.28/x
  3. Step 3: Cross multiply
    8,246.76x = 11,380.28 × 4,709.28
  4. Step 4: Simplify right side
    8,246.76x = 53,592,901.45
  5. Step 5: Solve for x
    x = 53,592,901.45/8,246.76
  6. Step 6: Final answer
    x = 6,498.66

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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.