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Finding the Fourth Proportional to 66,719.84, 92,072.59 and 36,504.81

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Solution

The fourth proportional to 66,719.84, 92,072.59 and 36,504.81 is: 50,376.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,719.84 : 92,072.59 = 36,504.81 : x
  2. Step 2: Convert to fraction form
    66,719.84/92,072.59 = 36,504.81/x
  3. Step 3: Cross multiply
    66,719.84x = 92,072.59 × 36,504.81
  4. Step 4: Simplify right side
    66,719.84x = 3,361,092,404.16
  5. Step 5: Solve for x
    x = 3,361,092,404.16/66,719.84
  6. Step 6: Final answer
    x = 50,376.21

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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.