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Finding the Fourth Proportional to 38,369.40, 52,942.74 and 21,373.22

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Solution

The fourth proportional to 38,369.40, 52,942.74 and 21,373.22 is: 29,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,369.40 : 52,942.74 = 21,373.22 : x
  2. Step 2: Convert to fraction form
    38,369.40/52,942.74 = 21,373.22/x
  3. Step 3: Cross multiply
    38,369.40x = 52,942.74 × 21,373.22
  4. Step 4: Simplify right side
    38,369.40x = 1,131,556,882.86
  5. Step 5: Solve for x
    x = 1,131,556,882.86/38,369.40
  6. Step 6: Final answer
    x = 29,491.13

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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.