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Finding the Fourth Proportional to 69,010.94, 103,516.24 and 21,629.66

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Solution

The fourth proportional to 69,010.94, 103,516.24 and 21,629.66 is: 32,444.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,010.94 : 103,516.24 = 21,629.66 : x
  2. Step 2: Convert to fraction form
    69,010.94/103,516.24 = 21,629.66/x
  3. Step 3: Cross multiply
    69,010.94x = 103,516.24 × 21,629.66
  4. Step 4: Simplify right side
    69,010.94x = 2,239,021,075.68
  5. Step 5: Solve for x
    x = 2,239,021,075.68/69,010.94
  6. Step 6: Final answer
    x = 32,444.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.