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Finding the Fourth Proportional to 55,668.87, 83,486.90 and 16,213.57

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Solution

The fourth proportional to 55,668.87, 83,486.90 and 16,213.57 is: 24,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,668.87 : 83,486.90 = 16,213.57 : x
  2. Step 2: Convert to fraction form
    55,668.87/83,486.90 = 16,213.57/x
  3. Step 3: Cross multiply
    55,668.87x = 83,486.90 × 16,213.57
  4. Step 4: Simplify right side
    55,668.87x = 1,353,620,529.05
  5. Step 5: Solve for x
    x = 1,353,620,529.05/55,668.87
  6. Step 6: Final answer
    x = 24,315.57

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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.