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Finding the Fourth Proportional to 22,662.59, 31,273.90 and 12,590.44

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Solution

The fourth proportional to 22,662.59, 31,273.90 and 12,590.44 is: 17,374.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.59 : 31,273.90 = 12,590.44 : x
  2. Step 2: Convert to fraction form
    22,662.59/31,273.90 = 12,590.44/x
  3. Step 3: Cross multiply
    22,662.59x = 31,273.90 × 12,590.44
  4. Step 4: Simplify right side
    22,662.59x = 393,752,051.86
  5. Step 5: Solve for x
    x = 393,752,051.86/22,662.59
  6. Step 6: Final answer
    x = 17,374.54

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1.5x scale

Why These Related Problems?

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