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Finding the Fourth Proportional to 54,519.75, 81,779.76 and 17,583.75

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Solution

The fourth proportional to 54,519.75, 81,779.76 and 17,583.75 is: 26,375.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,519.75 : 81,779.76 = 17,583.75 : x
  2. Step 2: Convert to fraction form
    54,519.75/81,779.76 = 17,583.75/x
  3. Step 3: Cross multiply
    54,519.75x = 81,779.76 × 17,583.75
  4. Step 4: Simplify right side
    54,519.75x = 1,437,994,854.90
  5. Step 5: Solve for x
    x = 1,437,994,854.90/54,519.75
  6. Step 6: Final answer
    x = 26,375.67

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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.