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Finding the Fourth Proportional to 36,855.48, 50,860.54 and 21,748.18

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Solution

The fourth proportional to 36,855.48, 50,860.54 and 21,748.18 is: 30,012.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,855.48 : 50,860.54 = 21,748.18 : x
  2. Step 2: Convert to fraction form
    36,855.48/50,860.54 = 21,748.18/x
  3. Step 3: Cross multiply
    36,855.48x = 50,860.54 × 21,748.18
  4. Step 4: Simplify right side
    36,855.48x = 1,106,124,178.82
  5. Step 5: Solve for x
    x = 1,106,124,178.82/36,855.48
  6. Step 6: Final answer
    x = 30,012.48

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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.