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Finding the Fourth Proportional to 28,816.50, 43,224.75 and 9,360.50

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Solution

The fourth proportional to 28,816.50, 43,224.75 and 9,360.50 is: 14,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.50 : 43,224.75 = 9,360.50 : x
  2. Step 2: Convert to fraction form
    28,816.50/43,224.75 = 9,360.50/x
  3. Step 3: Cross multiply
    28,816.50x = 43,224.75 × 9,360.50
  4. Step 4: Simplify right side
    28,816.50x = 404,605,272.38
  5. Step 5: Solve for x
    x = 404,605,272.38/28,816.50
  6. Step 6: Final answer
    x = 14,040.75

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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.