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Finding the Fourth Proportional to 28,889.52, 43,334.28 and 11,361.12

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Solution

The fourth proportional to 28,889.52, 43,334.28 and 11,361.12 is: 17,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,889.52 : 43,334.28 = 11,361.12 : x
  2. Step 2: Convert to fraction form
    28,889.52/43,334.28 = 11,361.12/x
  3. Step 3: Cross multiply
    28,889.52x = 43,334.28 × 11,361.12
  4. Step 4: Simplify right side
    28,889.52x = 492,325,955.19
  5. Step 5: Solve for x
    x = 492,325,955.19/28,889.52
  6. Step 6: Final answer
    x = 17,041.68

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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.