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Finding the Fourth Proportional to 28,896.52, 43,344.78 and 11,368.12

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Solution

The fourth proportional to 28,896.52, 43,344.78 and 11,368.12 is: 17,052.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.52 : 43,344.78 = 11,368.12 : x
  2. Step 2: Convert to fraction form
    28,896.52/43,344.78 = 11,368.12/x
  3. Step 3: Cross multiply
    28,896.52x = 43,344.78 × 11,368.12
  4. Step 4: Simplify right side
    28,896.52x = 492,748,660.41
  5. Step 5: Solve for x
    x = 492,748,660.41/28,896.52
  6. Step 6: Final answer
    x = 17,052.18

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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.