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Finding the Fourth Proportional to 12,039.59, 16,613.85 and 6,733.49

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Solution

The fourth proportional to 12,039.59, 16,613.85 and 6,733.49 is: 9,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.59 : 16,613.85 = 6,733.49 : x
  2. Step 2: Convert to fraction form
    12,039.59/16,613.85 = 6,733.49/x
  3. Step 3: Cross multiply
    12,039.59x = 16,613.85 × 6,733.49
  4. Step 4: Simplify right side
    12,039.59x = 111,869,109.77
  5. Step 5: Solve for x
    x = 111,869,109.77/12,039.59
  6. Step 6: Final answer
    x = 9,291.77

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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.