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Finding the Fourth Proportional to 22,213.98, 30,652.63 and 12,653.89

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Solution

The fourth proportional to 22,213.98, 30,652.63 and 12,653.89 is: 17,460.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,213.98 : 30,652.63 = 12,653.89 : x
  2. Step 2: Convert to fraction form
    22,213.98/30,652.63 = 12,653.89/x
  3. Step 3: Cross multiply
    22,213.98x = 30,652.63 × 12,653.89
  4. Step 4: Simplify right side
    22,213.98x = 387,874,899.96
  5. Step 5: Solve for x
    x = 387,874,899.96/22,213.98
  6. Step 6: Final answer
    x = 17,460.85

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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.