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Finding the Fourth Proportional to 2,992.78, 4,484.22 and 1,529.92

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Solution

The fourth proportional to 2,992.78, 4,484.22 and 1,529.92 is: 2,292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.78 : 4,484.22 = 1,529.92 : x
  2. Step 2: Convert to fraction form
    2,992.78/4,484.22 = 1,529.92/x
  3. Step 3: Cross multiply
    2,992.78x = 4,484.22 × 1,529.92
  4. Step 4: Simplify right side
    2,992.78x = 6,860,497.86
  5. Step 5: Solve for x
    x = 6,860,497.86/2,992.78
  6. Step 6: Final answer
    x = 2,292.35

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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.