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Finding the Fourth Proportional to 19,396.50, 26,766.15 and 10,898.99

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Solution

The fourth proportional to 19,396.50, 26,766.15 and 10,898.99 is: 15,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,396.50 : 26,766.15 = 10,898.99 : x
  2. Step 2: Convert to fraction form
    19,396.50/26,766.15 = 10,898.99/x
  3. Step 3: Cross multiply
    19,396.50x = 26,766.15 × 10,898.99
  4. Step 4: Simplify right side
    19,396.50x = 291,723,926.86
  5. Step 5: Solve for x
    x = 291,723,926.86/19,396.50
  6. Step 6: Final answer
    x = 15,040.03

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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.