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Finding the Fourth Proportional to 27,136.44, 40,701.42 and 7,416.72

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Solution

The fourth proportional to 27,136.44, 40,701.42 and 7,416.72 is: 11,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.44 : 40,701.42 = 7,416.72 : x
  2. Step 2: Convert to fraction form
    27,136.44/40,701.42 = 7,416.72/x
  3. Step 3: Cross multiply
    27,136.44x = 40,701.42 × 7,416.72
  4. Step 4: Simplify right side
    27,136.44x = 301,871,035.74
  5. Step 5: Solve for x
    x = 301,871,035.74/27,136.44
  6. Step 6: Final answer
    x = 11,124.19

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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.