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Finding the Fourth Proportional to 6,144.78, 9,218.77 and 1,762.58

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Solution

The fourth proportional to 6,144.78, 9,218.77 and 1,762.58 is: 2,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,144.78 : 9,218.77 = 1,762.58 : x
  2. Step 2: Convert to fraction form
    6,144.78/9,218.77 = 1,762.58/x
  3. Step 3: Cross multiply
    6,144.78x = 9,218.77 × 1,762.58
  4. Step 4: Simplify right side
    6,144.78x = 16,248,819.63
  5. Step 5: Solve for x
    x = 16,248,819.63/6,144.78
  6. Step 6: Final answer
    x = 2,644.33

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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.