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Finding the Fourth Proportional to 12,575.44, 18,863.34 and 4,784.68

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Solution

The fourth proportional to 12,575.44, 18,863.34 and 4,784.68 is: 7,177.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.44 : 18,863.34 = 4,784.68 : x
  2. Step 2: Convert to fraction form
    12,575.44/18,863.34 = 4,784.68/x
  3. Step 3: Cross multiply
    12,575.44x = 18,863.34 × 4,784.68
  4. Step 4: Simplify right side
    12,575.44x = 90,255,045.63
  5. Step 5: Solve for x
    x = 90,255,045.63/12,575.44
  6. Step 6: Final answer
    x = 7,177.09

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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.