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Finding the Fourth Proportional to 18,647.58, 27,971.37 and 4,795.50

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Solution

The fourth proportional to 18,647.58, 27,971.37 and 4,795.50 is: 7,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.58 : 27,971.37 = 4,795.50 : x
  2. Step 2: Convert to fraction form
    18,647.58/27,971.37 = 4,795.50/x
  3. Step 3: Cross multiply
    18,647.58x = 27,971.37 × 4,795.50
  4. Step 4: Simplify right side
    18,647.58x = 134,136,704.84
  5. Step 5: Solve for x
    x = 134,136,704.84/18,647.58
  6. Step 6: Final answer
    x = 7,193.25

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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.