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Finding the Fourth Proportional to 17,189.25, 25,788.20 and 4,877.25

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Solution

The fourth proportional to 17,189.25, 25,788.20 and 4,877.25 is: 7,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,189.25 : 25,788.20 = 4,877.25 : x
  2. Step 2: Convert to fraction form
    17,189.25/25,788.20 = 4,877.25/x
  3. Step 3: Cross multiply
    17,189.25x = 25,788.20 × 4,877.25
  4. Step 4: Simplify right side
    17,189.25x = 125,775,474.06
  5. Step 5: Solve for x
    x = 125,775,474.06/17,189.25
  6. Step 6: Final answer
    x = 7,317.10

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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.