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Finding the Fourth Proportional to 8,555.00, 11,806.10 and 4,777.97

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Solution

The fourth proportional to 8,555.00, 11,806.10 and 4,777.97 is: 6,593.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.00 : 11,806.10 = 4,777.97 : x
  2. Step 2: Convert to fraction form
    8,555.00/11,806.10 = 4,777.97/x
  3. Step 3: Cross multiply
    8,555.00x = 11,806.10 × 4,777.97
  4. Step 4: Simplify right side
    8,555.00x = 56,409,108.70
  5. Step 5: Solve for x
    x = 56,409,108.70/8,555.00
  6. Step 6: Final answer
    x = 6,593.70

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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.