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Finding the Fourth Proportional to 18,652.52, 25,720.74 and 14,404.26

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Solution

The fourth proportional to 18,652.52, 25,720.74 and 14,404.26 is: 19,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,652.52 : 25,720.74 = 14,404.26 : x
  2. Step 2: Convert to fraction form
    18,652.52/25,720.74 = 14,404.26/x
  3. Step 3: Cross multiply
    18,652.52x = 25,720.74 × 14,404.26
  4. Step 4: Simplify right side
    18,652.52x = 370,488,226.35
  5. Step 5: Solve for x
    x = 370,488,226.35/18,652.52
  6. Step 6: Final answer
    x = 19,862.64

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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.