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Finding the Fourth Proportional to 20,497.37, 30,746.06 and 11,726.13

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Solution

The fourth proportional to 20,497.37, 30,746.06 and 11,726.13 is: 17,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.37 : 30,746.06 = 11,726.13 : x
  2. Step 2: Convert to fraction form
    20,497.37/30,746.06 = 11,726.13/x
  3. Step 3: Cross multiply
    20,497.37x = 30,746.06 × 11,726.13
  4. Step 4: Simplify right side
    20,497.37x = 360,532,364.21
  5. Step 5: Solve for x
    x = 360,532,364.21/20,497.37
  6. Step 6: Final answer
    x = 17,589.20

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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.