Home / 28,779.40-43,082.70-17,086.60

Finding the Fourth Proportional to 28,779.40, 43,082.70 and 17,086.60

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Solution

The fourth proportional to 28,779.40, 43,082.70 and 17,086.60 is: 25,578.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.40 : 43,082.70 = 17,086.60 : x
  2. Step 2: Convert to fraction form
    28,779.40/43,082.70 = 17,086.60/x
  3. Step 3: Cross multiply
    28,779.40x = 43,082.70 × 17,086.60
  4. Step 4: Simplify right side
    28,779.40x = 736,136,861.82
  5. Step 5: Solve for x
    x = 736,136,861.82/28,779.40
  6. Step 6: Final answer
    x = 25,578.60

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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.