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Finding the Fourth Proportional to 21,926.29, 32,889.74 and 7,135.29

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Solution

The fourth proportional to 21,926.29, 32,889.74 and 7,135.29 is: 10,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,926.29 : 32,889.74 = 7,135.29 : x
  2. Step 2: Convert to fraction form
    21,926.29/32,889.74 = 7,135.29/x
  3. Step 3: Cross multiply
    21,926.29x = 32,889.74 × 7,135.29
  4. Step 4: Simplify right side
    21,926.29x = 234,677,832.92
  5. Step 5: Solve for x
    x = 234,677,832.92/21,926.29
  6. Step 6: Final answer
    x = 10,703.03

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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.