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Finding the Fourth Proportional to 19,009.44, 28,548.72 and 16,561.44

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Solution

The fourth proportional to 19,009.44, 28,548.72 and 16,561.44 is: 24,872.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.44 : 28,548.72 = 16,561.44 : x
  2. Step 2: Convert to fraction form
    19,009.44/28,548.72 = 16,561.44/x
  3. Step 3: Cross multiply
    19,009.44x = 28,548.72 × 16,561.44
  4. Step 4: Simplify right side
    19,009.44x = 472,807,913.36
  5. Step 5: Solve for x
    x = 472,807,913.36/19,009.44
  6. Step 6: Final answer
    x = 24,872.27

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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.