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Finding the Fourth Proportional to 64,906.77, 89,567.72 and 36,610.63

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Solution

The fourth proportional to 64,906.77, 89,567.72 and 36,610.63 is: 50,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,906.77 : 89,567.72 = 36,610.63 : x
  2. Step 2: Convert to fraction form
    64,906.77/89,567.72 = 36,610.63/x
  3. Step 3: Cross multiply
    64,906.77x = 89,567.72 × 36,610.63
  4. Step 4: Simplify right side
    64,906.77x = 3,279,130,473.81
  5. Step 5: Solve for x
    x = 3,279,130,473.81/64,906.77
  6. Step 6: Final answer
    x = 50,520.63

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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.