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Finding the Fourth Proportional to 11,308.79, 15,604.74 and 6,529.61

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Solution

The fourth proportional to 11,308.79, 15,604.74 and 6,529.61 is: 9,010.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,308.79 : 15,604.74 = 6,529.61 : x
  2. Step 2: Convert to fraction form
    11,308.79/15,604.74 = 6,529.61/x
  3. Step 3: Cross multiply
    11,308.79x = 15,604.74 × 6,529.61
  4. Step 4: Simplify right side
    11,308.79x = 101,892,788.33
  5. Step 5: Solve for x
    x = 101,892,788.33/11,308.79
  6. Step 6: Final answer
    x = 9,010.06

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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.