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Finding the Fourth Proportional to 70,558.88, 97,336.48 and 51,408.80

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Solution

The fourth proportional to 70,558.88, 97,336.48 and 51,408.80 is: 70,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,558.88 : 97,336.48 = 51,408.80 : x
  2. Step 2: Convert to fraction form
    70,558.88/97,336.48 = 51,408.80/x
  3. Step 3: Cross multiply
    70,558.88x = 97,336.48 × 51,408.80
  4. Step 4: Simplify right side
    70,558.88x = 5,003,951,633.02
  5. Step 5: Solve for x
    x = 5,003,951,633.02/70,558.88
  6. Step 6: Final answer
    x = 70,918.81

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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.