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Finding the Fourth Proportional to 22,376.03, 30,879.15 and 12,304.54

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Solution

The fourth proportional to 22,376.03, 30,879.15 and 12,304.54 is: 16,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.03 : 30,879.15 = 12,304.54 : x
  2. Step 2: Convert to fraction form
    22,376.03/30,879.15 = 12,304.54/x
  3. Step 3: Cross multiply
    22,376.03x = 30,879.15 × 12,304.54
  4. Step 4: Simplify right side
    22,376.03x = 379,953,854.65
  5. Step 5: Solve for x
    x = 379,953,854.65/22,376.03
  6. Step 6: Final answer
    x = 16,980.39

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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.