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Finding the Fourth Proportional to 8,366.70, 12,551.67 and 4,203.30

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Solution

The fourth proportional to 8,366.70, 12,551.67 and 4,203.30 is: 6,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366.70 : 12,551.67 = 4,203.30 : x
  2. Step 2: Convert to fraction form
    8,366.70/12,551.67 = 4,203.30/x
  3. Step 3: Cross multiply
    8,366.70x = 12,551.67 × 4,203.30
  4. Step 4: Simplify right side
    8,366.70x = 52,758,434.51
  5. Step 5: Solve for x
    x = 52,758,434.51/8,366.70
  6. Step 6: Final answer
    x = 6,305.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.