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Finding the Fourth Proportional to 10,866.58, 14,998.16 and 6,619.02

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Solution

The fourth proportional to 10,866.58, 14,998.16 and 6,619.02 is: 9,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866.58 : 14,998.16 = 6,619.02 : x
  2. Step 2: Convert to fraction form
    10,866.58/14,998.16 = 6,619.02/x
  3. Step 3: Cross multiply
    10,866.58x = 14,998.16 × 6,619.02
  4. Step 4: Simplify right side
    10,866.58x = 99,273,121.00
  5. Step 5: Solve for x
    x = 99,273,121.00/10,866.58
  6. Step 6: Final answer
    x = 9,135.64

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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.