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Finding the Fourth Proportional to 39,136.72, 58,704.36 and 9,553.72

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Solution

The fourth proportional to 39,136.72, 58,704.36 and 9,553.72 is: 14,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.72 : 58,704.36 = 9,553.72 : x
  2. Step 2: Convert to fraction form
    39,136.72/58,704.36 = 9,553.72/x
  3. Step 3: Cross multiply
    39,136.72x = 58,704.36 × 9,553.72
  4. Step 4: Simplify right side
    39,136.72x = 560,845,018.22
  5. Step 5: Solve for x
    x = 560,845,018.22/39,136.72
  6. Step 6: Final answer
    x = 14,330.40

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Double scale
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Similar ratio
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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.