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Finding the Fourth Proportional to 57,778.55, 79,738.11 and 33,896.51

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Solution

The fourth proportional to 57,778.55, 79,738.11 and 33,896.51 is: 46,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,778.55 : 79,738.11 = 33,896.51 : x
  2. Step 2: Convert to fraction form
    57,778.55/79,738.11 = 33,896.51/x
  3. Step 3: Cross multiply
    57,778.55x = 79,738.11 × 33,896.51
  4. Step 4: Simplify right side
    57,778.55x = 2,702,843,643.00
  5. Step 5: Solve for x
    x = 2,702,843,643.00/57,778.55
  6. Step 6: Final answer
    x = 46,779.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.