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Finding the Fourth Proportional to 64,484.94, 88,993.17 and 36,190.63

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Solution

The fourth proportional to 64,484.94, 88,993.17 and 36,190.63 is: 49,945.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,484.94 : 88,993.17 = 36,190.63 : x
  2. Step 2: Convert to fraction form
    64,484.94/88,993.17 = 36,190.63/x
  3. Step 3: Cross multiply
    64,484.94x = 88,993.17 × 36,190.63
  4. Step 4: Simplify right side
    64,484.94x = 3,220,718,262.08
  5. Step 5: Solve for x
    x = 3,220,718,262.08/64,484.94
  6. Step 6: Final answer
    x = 49,945.28

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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.