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Finding the Fourth Proportional to 69,738.76, 96,236.38 and 39,522.31

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Solution

The fourth proportional to 69,738.76, 96,236.38 and 39,522.31 is: 54,539.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,738.76 : 96,236.38 = 39,522.31 : x
  2. Step 2: Convert to fraction form
    69,738.76/96,236.38 = 39,522.31/x
  3. Step 3: Cross multiply
    69,738.76x = 96,236.38 × 39,522.31
  4. Step 4: Simplify right side
    69,738.76x = 3,803,484,043.64
  5. Step 5: Solve for x
    x = 3,803,484,043.64/69,738.76
  6. Step 6: Final answer
    x = 54,539.03

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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.