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Finding the Fourth Proportional to 65,853.96, 98,779.68 and 26,419.92

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Solution

The fourth proportional to 65,853.96, 98,779.68 and 26,419.92 is: 39,629.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,853.96 : 98,779.68 = 26,419.92 : x
  2. Step 2: Convert to fraction form
    65,853.96/98,779.68 = 26,419.92/x
  3. Step 3: Cross multiply
    65,853.96x = 98,779.68 × 26,419.92
  4. Step 4: Simplify right side
    65,853.96x = 2,609,751,243.23
  5. Step 5: Solve for x
    x = 2,609,751,243.23/65,853.96
  6. Step 6: Final answer
    x = 39,629.37

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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.