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Finding the Fourth Proportional to 64,669.50, 89,249.04 and 36,377.28

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Solution

The fourth proportional to 64,669.50, 89,249.04 and 36,377.28 is: 50,203.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,669.50 : 89,249.04 = 36,377.28 : x
  2. Step 2: Convert to fraction form
    64,669.50/89,249.04 = 36,377.28/x
  3. Step 3: Cross multiply
    64,669.50x = 89,249.04 × 36,377.28
  4. Step 4: Simplify right side
    64,669.50x = 3,246,637,317.81
  5. Step 5: Solve for x
    x = 3,246,637,317.81/64,669.50
  6. Step 6: Final answer
    x = 50,203.53

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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.