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Finding the Fourth Proportional to 64,486.88, 88,991.94 and 36,192.57

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Solution

The fourth proportional to 64,486.88, 88,991.94 and 36,192.57 is: 49,945.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,486.88 : 88,991.94 = 36,192.57 : x
  2. Step 2: Convert to fraction form
    64,486.88/88,991.94 = 36,192.57/x
  3. Step 3: Cross multiply
    64,486.88x = 88,991.94 × 36,192.57
  4. Step 4: Simplify right side
    64,486.88x = 3,220,847,017.89
  5. Step 5: Solve for x
    x = 3,220,847,017.89/64,486.88
  6. Step 6: Final answer
    x = 49,945.77

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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.