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Finding the Fourth Proportional to 69,332.69, 103,999.35 and 21,948.02

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Solution

The fourth proportional to 69,332.69, 103,999.35 and 21,948.02 is: 32,922.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,332.69 : 103,999.35 = 21,948.02 : x
  2. Step 2: Convert to fraction form
    69,332.69/103,999.35 = 21,948.02/x
  3. Step 3: Cross multiply
    69,332.69x = 103,999.35 × 21,948.02
  4. Step 4: Simplify right side
    69,332.69x = 2,282,579,596.84
  5. Step 5: Solve for x
    x = 2,282,579,596.84/69,332.69
  6. Step 6: Final answer
    x = 32,922.12

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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.