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Finding the Fourth Proportional to 77,779.74, 116,668.26 and 25,189.32

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Solution

The fourth proportional to 77,779.74, 116,668.26 and 25,189.32 is: 37,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,779.74 : 116,668.26 = 25,189.32 : x
  2. Step 2: Convert to fraction form
    77,779.74/116,668.26 = 25,189.32/x
  3. Step 3: Cross multiply
    77,779.74x = 116,668.26 × 25,189.32
  4. Step 4: Simplify right side
    77,779.74x = 2,938,794,134.98
  5. Step 5: Solve for x
    x = 2,938,794,134.98/77,779.74
  6. Step 6: Final answer
    x = 37,783.54

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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.