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Finding the Fourth Proportional to 8,656.98, 11,946.87 and 5,299.73

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Solution

The fourth proportional to 8,656.98, 11,946.87 and 5,299.73 is: 7,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.98 : 11,946.87 = 5,299.73 : x
  2. Step 2: Convert to fraction form
    8,656.98/11,946.87 = 5,299.73/x
  3. Step 3: Cross multiply
    8,656.98x = 11,946.87 × 5,299.73
  4. Step 4: Simplify right side
    8,656.98x = 63,315,158.85
  5. Step 5: Solve for x
    x = 63,315,158.85/8,656.98
  6. Step 6: Final answer
    x = 7,313.77

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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.