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Finding the Fourth Proportional to 68,481.35, 94,328.50 and 48,302.78

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Solution

The fourth proportional to 68,481.35, 94,328.50 and 48,302.78 is: 66,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,481.35 : 94,328.50 = 48,302.78 : x
  2. Step 2: Convert to fraction form
    68,481.35/94,328.50 = 48,302.78/x
  3. Step 3: Cross multiply
    68,481.35x = 94,328.50 × 48,302.78
  4. Step 4: Simplify right side
    68,481.35x = 4,556,328,812.00
  5. Step 5: Solve for x
    x = 4,556,328,812.00/68,481.35
  6. Step 6: Final answer
    x = 66,533.86

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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.