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Finding the Fourth Proportional to 64,980.68, 89,625.36 and 41,084.28

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Solution

The fourth proportional to 64,980.68, 89,625.36 and 41,084.28 is: 56,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,980.68 : 89,625.36 = 41,084.28 : x
  2. Step 2: Convert to fraction form
    64,980.68/89,625.36 = 41,084.28/x
  3. Step 3: Cross multiply
    64,980.68x = 89,625.36 × 41,084.28
  4. Step 4: Simplify right side
    64,980.68x = 3,682,193,385.34
  5. Step 5: Solve for x
    x = 3,682,193,385.34/64,980.68
  6. Step 6: Final answer
    x = 56,665.97

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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.