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Finding the Fourth Proportional to 19,256, 26,571.84 and 10,872.32

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Solution

The fourth proportional to 19,256, 26,571.84 and 10,872.32 is: 15,002.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,256 : 26,571.84 = 10,872.32 : x
  2. Step 2: Convert to fraction form
    19,256/26,571.84 = 10,872.32/x
  3. Step 3: Cross multiply
    19,256x = 26,571.84 × 10,872.32
  4. Step 4: Simplify right side
    19,256x = 288,897,547.47
  5. Step 5: Solve for x
    x = 288,897,547.47/19,256
  6. Step 6: Final answer
    x = 15,002.99

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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.