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Finding the Fourth Proportional to 16,896.40, 25,338.06 and 7,030.60

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Solution

The fourth proportional to 16,896.40, 25,338.06 and 7,030.60 is: 10,543.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,896.40 : 25,338.06 = 7,030.60 : x
  2. Step 2: Convert to fraction form
    16,896.40/25,338.06 = 7,030.60/x
  3. Step 3: Cross multiply
    16,896.40x = 25,338.06 × 7,030.60
  4. Step 4: Simplify right side
    16,896.40x = 178,141,764.64
  5. Step 5: Solve for x
    x = 178,141,764.64/16,896.40
  6. Step 6: Final answer
    x = 10,543.18

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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.