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Finding the Fourth Proportional to 69,332.78, 104,012.13 and 27,783.02

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Solution

The fourth proportional to 69,332.78, 104,012.13 and 27,783.02 is: 41,679.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,332.78 : 104,012.13 = 27,783.02 : x
  2. Step 2: Convert to fraction form
    69,332.78/104,012.13 = 27,783.02/x
  3. Step 3: Cross multiply
    69,332.78x = 104,012.13 × 27,783.02
  4. Step 4: Simplify right side
    69,332.78x = 2,889,771,088.03
  5. Step 5: Solve for x
    x = 2,889,771,088.03/69,332.78
  6. Step 6: Final answer
    x = 41,679.72

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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.