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Finding the Fourth Proportional to 8,706.17, 13,047.46 and 4,015.87

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Solution

The fourth proportional to 8,706.17, 13,047.46 and 4,015.87 is: 6,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.17 : 13,047.46 = 4,015.87 : x
  2. Step 2: Convert to fraction form
    8,706.17/13,047.46 = 4,015.87/x
  3. Step 3: Cross multiply
    8,706.17x = 13,047.46 × 4,015.87
  4. Step 4: Simplify right side
    8,706.17x = 52,396,903.19
  5. Step 5: Solve for x
    x = 52,396,903.19/8,706.17
  6. Step 6: Final answer
    x = 6,018.36

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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.