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Finding the Fourth Proportional to 18,008.60, 27,015.93 and 7,484.27

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Solution

The fourth proportional to 18,008.60, 27,015.93 and 7,484.27 is: 11,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,008.60 : 27,015.93 = 7,484.27 : x
  2. Step 2: Convert to fraction form
    18,008.60/27,015.93 = 7,484.27/x
  3. Step 3: Cross multiply
    18,008.60x = 27,015.93 × 7,484.27
  4. Step 4: Simplify right side
    18,008.60x = 202,194,379.34
  5. Step 5: Solve for x
    x = 202,194,379.34/18,008.60
  6. Step 6: Final answer
    x = 11,227.66

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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.