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Finding the Fourth Proportional to 38,408.79, 57,613.10 and 10,706.79

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Solution

The fourth proportional to 38,408.79, 57,613.10 and 10,706.79 is: 16,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.79 : 57,613.10 = 10,706.79 : x
  2. Step 2: Convert to fraction form
    38,408.79/57,613.10 = 10,706.79/x
  3. Step 3: Cross multiply
    38,408.79x = 57,613.10 × 10,706.79
  4. Step 4: Simplify right side
    38,408.79x = 616,851,309.42
  5. Step 5: Solve for x
    x = 616,851,309.42/38,408.79
  6. Step 6: Final answer
    x = 16,060.16

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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.