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Finding the Fourth Proportional to 21,889.51, 32,834.45 and 9,408.67

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Solution

The fourth proportional to 21,889.51, 32,834.45 and 9,408.67 is: 14,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,889.51 : 32,834.45 = 9,408.67 : x
  2. Step 2: Convert to fraction form
    21,889.51/32,834.45 = 9,408.67/x
  3. Step 3: Cross multiply
    21,889.51x = 32,834.45 × 9,408.67
  4. Step 4: Simplify right side
    21,889.51x = 308,928,504.68
  5. Step 5: Solve for x
    x = 308,928,504.68/21,889.51
  6. Step 6: Final answer
    x = 14,113.08

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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.