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Finding the Fourth Proportional to 16,771.61, 25,157.63 and 7,281.74

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Solution

The fourth proportional to 16,771.61, 25,157.63 and 7,281.74 is: 10,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,771.61 : 25,157.63 = 7,281.74 : x
  2. Step 2: Convert to fraction form
    16,771.61/25,157.63 = 7,281.74/x
  3. Step 3: Cross multiply
    16,771.61x = 25,157.63 × 7,281.74
  4. Step 4: Simplify right side
    16,771.61x = 183,191,401.77
  5. Step 5: Solve for x
    x = 183,191,401.77/16,771.61
  6. Step 6: Final answer
    x = 10,922.71

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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.