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Finding the Fourth Proportional to 68,706.80, 94,818.09 and 38,492.36

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Solution

The fourth proportional to 68,706.80, 94,818.09 and 38,492.36 is: 53,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,706.80 : 94,818.09 = 38,492.36 : x
  2. Step 2: Convert to fraction form
    68,706.80/94,818.09 = 38,492.36/x
  3. Step 3: Cross multiply
    68,706.80x = 94,818.09 × 38,492.36
  4. Step 4: Simplify right side
    68,706.80x = 3,649,771,580.70
  5. Step 5: Solve for x
    x = 3,649,771,580.70/68,706.80
  6. Step 6: Final answer
    x = 53,120.97

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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.