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Finding the Fourth Proportional to 22,207.88, 30,643.92 and 14,260.88

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Solution

The fourth proportional to 22,207.88, 30,643.92 and 14,260.88 is: 19,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,207.88 : 30,643.92 = 14,260.88 : x
  2. Step 2: Convert to fraction form
    22,207.88/30,643.92 = 14,260.88/x
  3. Step 3: Cross multiply
    22,207.88x = 30,643.92 × 14,260.88
  4. Step 4: Simplify right side
    22,207.88x = 437,009,112.63
  5. Step 5: Solve for x
    x = 437,009,112.63/22,207.88
  6. Step 6: Final answer
    x = 19,678.11

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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.