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Finding the Fourth Proportional to 18,411.93, 27,617.90 and 14,054.13

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Solution

The fourth proportional to 18,411.93, 27,617.90 and 14,054.13 is: 21,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.93 : 27,617.90 = 14,054.13 : x
  2. Step 2: Convert to fraction form
    18,411.93/27,617.90 = 14,054.13/x
  3. Step 3: Cross multiply
    18,411.93x = 27,617.90 × 14,054.13
  4. Step 4: Simplify right side
    18,411.93x = 388,145,486.66
  5. Step 5: Solve for x
    x = 388,145,486.66/18,411.93
  6. Step 6: Final answer
    x = 21,081.20

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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.