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Finding the Fourth Proportional to 34,881.92, 48,136.70 and 18,966.37

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Solution

The fourth proportional to 34,881.92, 48,136.70 and 18,966.37 is: 26,173.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,881.92 : 48,136.70 = 18,966.37 : x
  2. Step 2: Convert to fraction form
    34,881.92/48,136.70 = 18,966.37/x
  3. Step 3: Cross multiply
    34,881.92x = 48,136.70 × 18,966.37
  4. Step 4: Simplify right side
    34,881.92x = 912,978,462.78
  5. Step 5: Solve for x
    x = 912,978,462.78/34,881.92
  6. Step 6: Final answer
    x = 26,173.40

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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.