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Finding the Fourth Proportional to 68,302.69, 94,257.71 and 38,494.69

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Solution

The fourth proportional to 68,302.69, 94,257.71 and 38,494.69 is: 53,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,302.69 : 94,257.71 = 38,494.69 : x
  2. Step 2: Convert to fraction form
    68,302.69/94,257.71 = 38,494.69/x
  3. Step 3: Cross multiply
    68,302.69x = 94,257.71 × 38,494.69
  4. Step 4: Simplify right side
    68,302.69x = 3,628,421,042.80
  5. Step 5: Solve for x
    x = 3,628,421,042.80/68,302.69
  6. Step 6: Final answer
    x = 53,122.67

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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.