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Finding the Fourth Proportional to 22,376.88, 30,872.88 and 14,405.04

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Solution

The fourth proportional to 22,376.88, 30,872.88 and 14,405.04 is: 19,874.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,376.88 : 30,872.88 = 14,405.04 : x
  2. Step 2: Convert to fraction form
    22,376.88/30,872.88 = 14,405.04/x
  3. Step 3: Cross multiply
    22,376.88x = 30,872.88 × 14,405.04
  4. Step 4: Simplify right side
    22,376.88x = 444,725,071.32
  5. Step 5: Solve for x
    x = 444,725,071.32/22,376.88
  6. Step 6: Final answer
    x = 19,874.31

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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.