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Finding the Fourth Proportional to 16,489.61, 24,728.72 and 10,971.99

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Solution

The fourth proportional to 16,489.61, 24,728.72 and 10,971.99 is: 16,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,489.61 : 24,728.72 = 10,971.99 : x
  2. Step 2: Convert to fraction form
    16,489.61/24,728.72 = 10,971.99/x
  3. Step 3: Cross multiply
    16,489.61x = 24,728.72 × 10,971.99
  4. Step 4: Simplify right side
    16,489.61x = 271,323,268.55
  5. Step 5: Solve for x
    x = 271,323,268.55/16,489.61
  6. Step 6: Final answer
    x = 16,454.20

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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.