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Finding the Fourth Proportional to 8,606.51, 12,909.76 and 2,767.22

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Solution

The fourth proportional to 8,606.51, 12,909.76 and 2,767.22 is: 4,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,606.51 : 12,909.76 = 2,767.22 : x
  2. Step 2: Convert to fraction form
    8,606.51/12,909.76 = 2,767.22/x
  3. Step 3: Cross multiply
    8,606.51x = 12,909.76 × 2,767.22
  4. Step 4: Simplify right side
    8,606.51x = 35,724,146.07
  5. Step 5: Solve for x
    x = 35,724,146.07/8,606.51
  6. Step 6: Final answer
    x = 4,150.83

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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.