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Finding the Fourth Proportional to 7,800.84, 11,701.27 and 2,606.72

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Solution

The fourth proportional to 7,800.84, 11,701.27 and 2,606.72 is: 3,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800.84 : 11,701.27 = 2,606.72 : x
  2. Step 2: Convert to fraction form
    7,800.84/11,701.27 = 2,606.72/x
  3. Step 3: Cross multiply
    7,800.84x = 11,701.27 × 2,606.72
  4. Step 4: Simplify right side
    7,800.84x = 30,501,913.39
  5. Step 5: Solve for x
    x = 30,501,913.39/7,800.84
  6. Step 6: Final answer
    x = 3,910.08

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Similar ratio
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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.