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Finding the Fourth Proportional to 9,986.66, 14,989.19 and 5,059.73

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Solution

The fourth proportional to 9,986.66, 14,989.19 and 5,059.73 is: 7,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.66 : 14,989.19 = 5,059.73 : x
  2. Step 2: Convert to fraction form
    9,986.66/14,989.19 = 5,059.73/x
  3. Step 3: Cross multiply
    9,986.66x = 14,989.19 × 5,059.73
  4. Step 4: Simplify right side
    9,986.66x = 75,841,254.32
  5. Step 5: Solve for x
    x = 75,841,254.32/9,986.66
  6. Step 6: Final answer
    x = 7,594.26

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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.