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Finding the Fourth Proportional to 21,762.91, 29,837.23 and 21,369.25

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Solution

The fourth proportional to 21,762.91, 29,837.23 and 21,369.25 is: 29,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,762.91 : 29,837.23 = 21,369.25 : x
  2. Step 2: Convert to fraction form
    21,762.91/29,837.23 = 21,369.25/x
  3. Step 3: Cross multiply
    21,762.91x = 29,837.23 × 21,369.25
  4. Step 4: Simplify right side
    21,762.91x = 637,599,211.05
  5. Step 5: Solve for x
    x = 637,599,211.05/21,762.91
  6. Step 6: Final answer
    x = 29,297.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.