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Finding the Fourth Proportional to 19,549.72, 26,983.02 and 16,400.44

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Solution

The fourth proportional to 19,549.72, 26,983.02 and 16,400.44 is: 22,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,549.72 : 26,983.02 = 16,400.44 : x
  2. Step 2: Convert to fraction form
    19,549.72/26,983.02 = 16,400.44/x
  3. Step 3: Cross multiply
    19,549.72x = 26,983.02 × 16,400.44
  4. Step 4: Simplify right side
    19,549.72x = 442,533,400.53
  5. Step 5: Solve for x
    x = 442,533,400.53/19,549.72
  6. Step 6: Final answer
    x = 22,636.30

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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.