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Finding the Fourth Proportional to 66,983.84, 92,438.47 and 36,768.51

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Solution

The fourth proportional to 66,983.84, 92,438.47 and 36,768.51 is: 50,740.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,983.84 : 92,438.47 = 36,768.51 : x
  2. Step 2: Convert to fraction form
    66,983.84/92,438.47 = 36,768.51/x
  3. Step 3: Cross multiply
    66,983.84x = 92,438.47 × 36,768.51
  4. Step 4: Simplify right side
    66,983.84x = 3,398,824,738.38
  5. Step 5: Solve for x
    x = 3,398,824,738.38/66,983.84
  6. Step 6: Final answer
    x = 50,740.97

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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.