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Finding the Fourth Proportional to 8,333.12, 11,500.31 and 4,976.08

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Solution

The fourth proportional to 8,333.12, 11,500.31 and 4,976.08 is: 6,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.12 : 11,500.31 = 4,976.08 : x
  2. Step 2: Convert to fraction form
    8,333.12/11,500.31 = 4,976.08/x
  3. Step 3: Cross multiply
    8,333.12x = 11,500.31 × 4,976.08
  4. Step 4: Simplify right side
    8,333.12x = 57,226,446.27
  5. Step 5: Solve for x
    x = 57,226,446.27/8,333.12
  6. Step 6: Final answer
    x = 6,867.35

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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.