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Finding the Fourth Proportional to 17,875.94, 26,812.73 and 7,343.21

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Solution

The fourth proportional to 17,875.94, 26,812.73 and 7,343.21 is: 11,014.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,875.94 : 26,812.73 = 7,343.21 : x
  2. Step 2: Convert to fraction form
    17,875.94/26,812.73 = 7,343.21/x
  3. Step 3: Cross multiply
    17,875.94x = 26,812.73 × 7,343.21
  4. Step 4: Simplify right side
    17,875.94x = 196,891,336.28
  5. Step 5: Solve for x
    x = 196,891,336.28/17,875.94
  6. Step 6: Final answer
    x = 11,014.32

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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.