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Finding the Fourth Proportional to 19,906.14, 27,411.22 and 19,464.15

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Solution

The fourth proportional to 19,906.14, 27,411.22 and 19,464.15 is: 26,802.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906.14 : 27,411.22 = 19,464.15 : x
  2. Step 2: Convert to fraction form
    19,906.14/27,411.22 = 19,464.15/x
  3. Step 3: Cross multiply
    19,906.14x = 27,411.22 × 19,464.15
  4. Step 4: Simplify right side
    19,906.14x = 533,536,097.76
  5. Step 5: Solve for x
    x = 533,536,097.76/19,906.14
  6. Step 6: Final answer
    x = 26,802.59

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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.