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Finding the Fourth Proportional to 69,051.52, 103,590.64 and 26,929.90

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Solution

The fourth proportional to 69,051.52, 103,590.64 and 26,929.90 is: 40,400.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,051.52 : 103,590.64 = 26,929.90 : x
  2. Step 2: Convert to fraction form
    69,051.52/103,590.64 = 26,929.90/x
  3. Step 3: Cross multiply
    69,051.52x = 103,590.64 × 26,929.90
  4. Step 4: Simplify right side
    69,051.52x = 2,789,685,576.14
  5. Step 5: Solve for x
    x = 2,789,685,576.14/69,051.52
  6. Step 6: Final answer
    x = 40,400.06

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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.