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Finding the Fourth Proportional to 69,695.12, 104,509.72 and 27,020.52

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Solution

The fourth proportional to 69,695.12, 104,509.72 and 27,020.52 is: 40,518.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,695.12 : 104,509.72 = 27,020.52 : x
  2. Step 2: Convert to fraction form
    69,695.12/104,509.72 = 27,020.52/x
  3. Step 3: Cross multiply
    69,695.12x = 104,509.72 × 27,020.52
  4. Step 4: Simplify right side
    69,695.12x = 2,823,906,979.45
  5. Step 5: Solve for x
    x = 2,823,906,979.45/69,695.12
  6. Step 6: Final answer
    x = 40,518.00

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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.