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Finding the Fourth Proportional to 11,311.94, 16,931.45 and 6,039.45

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Solution

The fourth proportional to 11,311.94, 16,931.45 and 6,039.45 is: 9,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.94 : 16,931.45 = 6,039.45 : x
  2. Step 2: Convert to fraction form
    11,311.94/16,931.45 = 6,039.45/x
  3. Step 3: Cross multiply
    11,311.94x = 16,931.45 × 6,039.45
  4. Step 4: Simplify right side
    11,311.94x = 102,256,615.51
  5. Step 5: Solve for x
    x = 102,256,615.51/11,311.94
  6. Step 6: Final answer
    x = 9,039.71

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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.