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Finding the Fourth Proportional to 15,062.68, 20,786.34 and 9,017.02

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Solution

The fourth proportional to 15,062.68, 20,786.34 and 9,017.02 is: 12,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,062.68 : 20,786.34 = 9,017.02 : x
  2. Step 2: Convert to fraction form
    15,062.68/20,786.34 = 9,017.02/x
  3. Step 3: Cross multiply
    15,062.68x = 20,786.34 × 9,017.02
  4. Step 4: Simplify right side
    15,062.68x = 187,430,843.51
  5. Step 5: Solve for x
    x = 187,430,843.51/15,062.68
  6. Step 6: Final answer
    x = 12,443.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.