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Finding the Fourth Proportional to 36,303.80, 54,338.51 and 18,749.48

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Solution

The fourth proportional to 36,303.80, 54,338.51 and 18,749.48 is: 28,063.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,303.80 : 54,338.51 = 18,749.48 : x
  2. Step 2: Convert to fraction form
    36,303.80/54,338.51 = 18,749.48/x
  3. Step 3: Cross multiply
    36,303.80x = 54,338.51 × 18,749.48
  4. Step 4: Simplify right side
    36,303.80x = 1,018,818,581.66
  5. Step 5: Solve for x
    x = 1,018,818,581.66/36,303.80
  6. Step 6: Final answer
    x = 28,063.69

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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.