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Finding the Fourth Proportional to 22,376.66, 30,879.50 and 12,305.01

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Solution

The fourth proportional to 22,376.66, 30,879.50 and 12,305.01 is: 16,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.66 : 30,879.50 = 12,305.01 : x
  2. Step 2: Convert to fraction form
    22,376.66/30,879.50 = 12,305.01/x
  3. Step 3: Cross multiply
    22,376.66x = 30,879.50 × 12,305.01
  4. Step 4: Simplify right side
    22,376.66x = 379,972,494.77
  5. Step 5: Solve for x
    x = 379,972,494.77/22,376.66
  6. Step 6: Final answer
    x = 16,980.75

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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.