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Finding the Fourth Proportional to 22,907.52, 31,609.44 and 13,472.64

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Solution

The fourth proportional to 22,907.52, 31,609.44 and 13,472.64 is: 18,590.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,907.52 : 31,609.44 = 13,472.64 : x
  2. Step 2: Convert to fraction form
    22,907.52/31,609.44 = 13,472.64/x
  3. Step 3: Cross multiply
    22,907.52x = 31,609.44 × 13,472.64
  4. Step 4: Simplify right side
    22,907.52x = 425,862,605.72
  5. Step 5: Solve for x
    x = 425,862,605.72/22,907.52
  6. Step 6: Final answer
    x = 18,590.52

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.