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Finding the Fourth Proportional to 53,745.36, 80,255.86 and 43,904.08

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Solution

The fourth proportional to 53,745.36, 80,255.86 and 43,904.08 is: 65,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,745.36 : 80,255.86 = 43,904.08 : x
  2. Step 2: Convert to fraction form
    53,745.36/80,255.86 = 43,904.08/x
  3. Step 3: Cross multiply
    53,745.36x = 80,255.86 × 43,904.08
  4. Step 4: Simplify right side
    53,745.36x = 3,523,559,697.91
  5. Step 5: Solve for x
    x = 3,523,559,697.91/53,745.36
  6. Step 6: Final answer
    x = 65,560.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.