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Finding the Fourth Proportional to 18,863.75, 28,252.54 and 9,010.00

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Solution

The fourth proportional to 18,863.75, 28,252.54 and 9,010.00 is: 13,494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.75 : 28,252.54 = 9,010.00 : x
  2. Step 2: Convert to fraction form
    18,863.75/28,252.54 = 9,010.00/x
  3. Step 3: Cross multiply
    18,863.75x = 28,252.54 × 9,010.00
  4. Step 4: Simplify right side
    18,863.75x = 254,555,199.09
  5. Step 5: Solve for x
    x = 254,555,199.09/18,863.75
  6. Step 6: Final answer
    x = 13,494.41

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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.