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Finding the Fourth Proportional to 8,502.05, 12,756.11 and 2,955.17

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Solution

The fourth proportional to 8,502.05, 12,756.11 and 2,955.17 is: 4,433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.05 : 12,756.11 = 2,955.17 : x
  2. Step 2: Convert to fraction form
    8,502.05/12,756.11 = 2,955.17/x
  3. Step 3: Cross multiply
    8,502.05x = 12,756.11 × 2,955.17
  4. Step 4: Simplify right side
    8,502.05x = 37,696,395.03
  5. Step 5: Solve for x
    x = 37,696,395.03/8,502.05
  6. Step 6: Final answer
    x = 4,433.80

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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.