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Finding the Fourth Proportional to 14,618.52, 21,939.12 and 5,854.32

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Solution

The fourth proportional to 14,618.52, 21,939.12 and 5,854.32 is: 8,786.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.52 : 21,939.12 = 5,854.32 : x
  2. Step 2: Convert to fraction form
    14,618.52/21,939.12 = 5,854.32/x
  3. Step 3: Cross multiply
    14,618.52x = 21,939.12 × 5,854.32
  4. Step 4: Simplify right side
    14,618.52x = 128,438,629.00
  5. Step 5: Solve for x
    x = 128,438,629.00/14,618.52
  6. Step 6: Final answer
    x = 8,786.02

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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.