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Finding the Fourth Proportional to 55,638.80, 83,450.10 and 16,191.80

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Solution

The fourth proportional to 55,638.80, 83,450.10 and 16,191.80 is: 24,285.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,638.80 : 83,450.10 = 16,191.80 : x
  2. Step 2: Convert to fraction form
    55,638.80/83,450.10 = 16,191.80/x
  3. Step 3: Cross multiply
    55,638.80x = 83,450.10 × 16,191.80
  4. Step 4: Simplify right side
    55,638.80x = 1,351,207,329.18
  5. Step 5: Solve for x
    x = 1,351,207,329.18/55,638.80
  6. Step 6: Final answer
    x = 24,285.34

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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.