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Finding the Fourth Proportional to 22,397.76, 30,889.44 and 14,437.44

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Solution

The fourth proportional to 22,397.76, 30,889.44 and 14,437.44 is: 19,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,397.76 : 30,889.44 = 14,437.44 : x
  2. Step 2: Convert to fraction form
    22,397.76/30,889.44 = 14,437.44/x
  3. Step 3: Cross multiply
    22,397.76x = 30,889.44 × 14,437.44
  4. Step 4: Simplify right side
    22,397.76x = 445,964,436.63
  5. Step 5: Solve for x
    x = 445,964,436.63/22,397.76
  6. Step 6: Final answer
    x = 19,911.12

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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.