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Finding the Fourth Proportional to 30,522.77, 45,776.98 and 8,330.86

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Solution

The fourth proportional to 30,522.77, 45,776.98 and 8,330.86 is: 12,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.77 : 45,776.98 = 8,330.86 : x
  2. Step 2: Convert to fraction form
    30,522.77/45,776.98 = 8,330.86/x
  3. Step 3: Cross multiply
    30,522.77x = 45,776.98 × 8,330.86
  4. Step 4: Simplify right side
    30,522.77x = 381,361,476.33
  5. Step 5: Solve for x
    x = 381,361,476.33/30,522.77
  6. Step 6: Final answer
    x = 12,494.33

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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.