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Finding the Fourth Proportional to 8,585.50, 11,848.17 and 4,859.50

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Solution

The fourth proportional to 8,585.50, 11,848.17 and 4,859.50 is: 6,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.50 : 11,848.17 = 4,859.50 : x
  2. Step 2: Convert to fraction form
    8,585.50/11,848.17 = 4,859.50/x
  3. Step 3: Cross multiply
    8,585.50x = 11,848.17 × 4,859.50
  4. Step 4: Simplify right side
    8,585.50x = 57,576,182.12
  5. Step 5: Solve for x
    x = 57,576,182.12/8,585.50
  6. Step 6: Final answer
    x = 6,706.21

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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.