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Finding the Fourth Proportional to 18,369.80, 25,360.72 and 14,054.76

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Solution

The fourth proportional to 18,369.80, 25,360.72 and 14,054.76 is: 19,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,369.80 : 25,360.72 = 14,054.76 : x
  2. Step 2: Convert to fraction form
    18,369.80/25,360.72 = 14,054.76/x
  3. Step 3: Cross multiply
    18,369.80x = 25,360.72 × 14,054.76
  4. Step 4: Simplify right side
    18,369.80x = 356,438,833.03
  5. Step 5: Solve for x
    x = 356,438,833.03/18,369.80
  6. Step 6: Final answer
    x = 19,403.52

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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.