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Finding the Fourth Proportional to 17,955.28, 26,937.20 and 5,643.28

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Solution

The fourth proportional to 17,955.28, 26,937.20 and 5,643.28 is: 8,466.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.28 : 26,937.20 = 5,643.28 : x
  2. Step 2: Convert to fraction form
    17,955.28/26,937.20 = 5,643.28/x
  3. Step 3: Cross multiply
    17,955.28x = 26,937.20 × 5,643.28
  4. Step 4: Simplify right side
    17,955.28x = 152,014,162.02
  5. Step 5: Solve for x
    x = 152,014,162.02/17,955.28
  6. Step 6: Final answer
    x = 8,466.27

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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.