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Finding the Fourth Proportional to 13,757.93, 20,636.93 and 4,398.71

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Solution

The fourth proportional to 13,757.93, 20,636.93 and 4,398.71 is: 6,598.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.93 : 20,636.93 = 4,398.71 : x
  2. Step 2: Convert to fraction form
    13,757.93/20,636.93 = 4,398.71/x
  3. Step 3: Cross multiply
    13,757.93x = 20,636.93 × 4,398.71
  4. Step 4: Simplify right side
    13,757.93x = 90,775,745.18
  5. Step 5: Solve for x
    x = 90,775,745.18/13,757.93
  6. Step 6: Final answer
    x = 6,598.07

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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.