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Finding the Fourth Proportional to 8,160.09, 11,260.88 and 4,434.09

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Solution

The fourth proportional to 8,160.09, 11,260.88 and 4,434.09 is: 6,119.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.09 : 11,260.88 = 4,434.09 : x
  2. Step 2: Convert to fraction form
    8,160.09/11,260.88 = 4,434.09/x
  3. Step 3: Cross multiply
    8,160.09x = 11,260.88 × 4,434.09
  4. Step 4: Simplify right side
    8,160.09x = 49,931,676.92
  5. Step 5: Solve for x
    x = 49,931,676.92/8,160.09
  6. Step 6: Final answer
    x = 6,119.01

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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.