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Finding the Fourth Proportional to 17,989.43, 26,980.92 and 10,585.22

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Solution

The fourth proportional to 17,989.43, 26,980.92 and 10,585.22 is: 15,875.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,989.43 : 26,980.92 = 10,585.22 : x
  2. Step 2: Convert to fraction form
    17,989.43/26,980.92 = 10,585.22/x
  3. Step 3: Cross multiply
    17,989.43x = 26,980.92 × 10,585.22
  4. Step 4: Simplify right side
    17,989.43x = 285,598,839.10
  5. Step 5: Solve for x
    x = 285,598,839.10/17,989.43
  6. Step 6: Final answer
    x = 15,875.93

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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.