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Finding the Fourth Proportional to 67,881.21, 93,678.21 and 37,668.75

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Solution

The fourth proportional to 67,881.21, 93,678.21 and 37,668.75 is: 51,984.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,881.21 : 93,678.21 = 37,668.75 : x
  2. Step 2: Convert to fraction form
    67,881.21/93,678.21 = 37,668.75/x
  3. Step 3: Cross multiply
    67,881.21x = 93,678.21 × 37,668.75
  4. Step 4: Simplify right side
    67,881.21x = 3,528,741,072.94
  5. Step 5: Solve for x
    x = 3,528,741,072.94/67,881.21
  6. Step 6: Final answer
    x = 51,984.06

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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.