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Finding the Fourth Proportional to 64,408.59, 88,884.75 and 38,911.41

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Solution

The fourth proportional to 64,408.59, 88,884.75 and 38,911.41 is: 53,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,408.59 : 88,884.75 = 38,911.41 : x
  2. Step 2: Convert to fraction form
    64,408.59/88,884.75 = 38,911.41/x
  3. Step 3: Cross multiply
    64,408.59x = 88,884.75 × 38,911.41
  4. Step 4: Simplify right side
    64,408.59x = 3,458,630,950.00
  5. Step 5: Solve for x
    x = 3,458,630,950.00/64,408.59
  6. Step 6: Final answer
    x = 53,698.29

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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.