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Finding the Fourth Proportional to 69,851.75, 96,392.54 and 39,636.43

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Solution

The fourth proportional to 69,851.75, 96,392.54 and 39,636.43 is: 54,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851.75 : 96,392.54 = 39,636.43 : x
  2. Step 2: Convert to fraction form
    69,851.75/96,392.54 = 39,636.43/x
  3. Step 3: Cross multiply
    69,851.75x = 96,392.54 × 39,636.43
  4. Step 4: Simplify right side
    69,851.75x = 3,820,656,022.34
  5. Step 5: Solve for x
    x = 3,820,656,022.34/69,851.75
  6. Step 6: Final answer
    x = 54,696.64

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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.