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Finding the Fourth Proportional to 69,837.63, 96,378.11 and 39,624.22

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Solution

The fourth proportional to 69,837.63, 96,378.11 and 39,624.22 is: 54,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,837.63 : 96,378.11 = 39,624.22 : x
  2. Step 2: Convert to fraction form
    69,837.63/96,378.11 = 39,624.22/x
  3. Step 3: Cross multiply
    69,837.63x = 96,378.11 × 39,624.22
  4. Step 4: Simplify right side
    69,837.63x = 3,818,907,433.82
  5. Step 5: Solve for x
    x = 3,818,907,433.82/69,837.63
  6. Step 6: Final answer
    x = 54,682.66

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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.