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Finding the Fourth Proportional to 18,559.94, 27,810.74 and 14,353.61

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Solution

The fourth proportional to 18,559.94, 27,810.74 and 14,353.61 is: 21,507.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.94 : 27,810.74 = 14,353.61 : x
  2. Step 2: Convert to fraction form
    18,559.94/27,810.74 = 14,353.61/x
  3. Step 3: Cross multiply
    18,559.94x = 27,810.74 × 14,353.61
  4. Step 4: Simplify right side
    18,559.94x = 399,184,412.60
  5. Step 5: Solve for x
    x = 399,184,412.60/18,559.94
  6. Step 6: Final answer
    x = 21,507.86

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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.