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Finding the Fourth Proportional to 10,588.58, 15,885.49 and 7,474.68

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Solution

The fourth proportional to 10,588.58, 15,885.49 and 7,474.68 is: 11,213.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,588.58 : 15,885.49 = 7,474.68 : x
  2. Step 2: Convert to fraction form
    10,588.58/15,885.49 = 7,474.68/x
  3. Step 3: Cross multiply
    10,588.58x = 15,885.49 × 7,474.68
  4. Step 4: Simplify right side
    10,588.58x = 118,738,954.39
  5. Step 5: Solve for x
    x = 118,738,954.39/10,588.58
  6. Step 6: Final answer
    x = 11,213.87

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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.