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Finding the Fourth Proportional to 64,936.42, 89,596.74 and 36,642.18

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Solution

The fourth proportional to 64,936.42, 89,596.74 and 36,642.18 is: 50,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,936.42 : 89,596.74 = 36,642.18 : x
  2. Step 2: Convert to fraction form
    64,936.42/89,596.74 = 36,642.18/x
  3. Step 3: Cross multiply
    64,936.42x = 89,596.74 × 36,642.18
  4. Step 4: Simplify right side
    64,936.42x = 3,283,019,874.49
  5. Step 5: Solve for x
    x = 3,283,019,874.49/64,936.42
  6. Step 6: Final answer
    x = 50,557.45

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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.