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Finding the Fourth Proportional to 9,959.40, 14,940.90 and 5,016.60

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Solution

The fourth proportional to 9,959.40, 14,940.90 and 5,016.60 is: 7,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,959.40 : 14,940.90 = 5,016.60 : x
  2. Step 2: Convert to fraction form
    9,959.40/14,940.90 = 5,016.60/x
  3. Step 3: Cross multiply
    9,959.40x = 14,940.90 × 5,016.60
  4. Step 4: Simplify right side
    9,959.40x = 74,952,518.94
  5. Step 5: Solve for x
    x = 74,952,518.94/9,959.40
  6. Step 6: Final answer
    x = 7,525.81

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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.