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Finding the Fourth Proportional to 14,411.51, 19,889.19 and 8,747.71

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Solution

The fourth proportional to 14,411.51, 19,889.19 and 8,747.71 is: 12,072.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.51 : 19,889.19 = 8,747.71 : x
  2. Step 2: Convert to fraction form
    14,411.51/19,889.19 = 8,747.71/x
  3. Step 3: Cross multiply
    14,411.51x = 19,889.19 × 8,747.71
  4. Step 4: Simplify right side
    14,411.51x = 173,984,816.53
  5. Step 5: Solve for x
    x = 173,984,816.53/14,411.51
  6. Step 6: Final answer
    x = 12,072.63

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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.