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Finding the Fourth Proportional to 18,943.22, 28,477.10 and 17,573.09

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Solution

The fourth proportional to 18,943.22, 28,477.10 and 17,573.09 is: 26,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.22 : 28,477.10 = 17,573.09 : x
  2. Step 2: Convert to fraction form
    18,943.22/28,477.10 = 17,573.09/x
  3. Step 3: Cross multiply
    18,943.22x = 28,477.10 × 17,573.09
  4. Step 4: Simplify right side
    18,943.22x = 500,430,553.37
  5. Step 5: Solve for x
    x = 500,430,553.37/18,943.22
  6. Step 6: Final answer
    x = 26,417.40

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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.