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Finding the Fourth Proportional to 92,021.57, 138,021.57 and 25,466.81

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Solution

The fourth proportional to 92,021.57, 138,021.57 and 25,466.81 is: 38,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,021.57 : 138,021.57 = 25,466.81 : x
  2. Step 2: Convert to fraction form
    92,021.57/138,021.57 = 25,466.81/x
  3. Step 3: Cross multiply
    92,021.57x = 138,021.57 × 25,466.81
  4. Step 4: Simplify right side
    92,021.57x = 3,514,968,408.98
  5. Step 5: Solve for x
    x = 3,514,968,408.98/92,021.57
  6. Step 6: Final answer
    x = 38,197.22

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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.