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Finding the Fourth Proportional to 18,625.71, 27,903.39 and 14,445.24

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Solution

The fourth proportional to 18,625.71, 27,903.39 and 14,445.24 is: 21,640.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,625.71 : 27,903.39 = 14,445.24 : x
  2. Step 2: Convert to fraction form
    18,625.71/27,903.39 = 14,445.24/x
  3. Step 3: Cross multiply
    18,625.71x = 27,903.39 × 14,445.24
  4. Step 4: Simplify right side
    18,625.71x = 403,071,165.36
  5. Step 5: Solve for x
    x = 403,071,165.36/18,625.71
  6. Step 6: Final answer
    x = 21,640.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.