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Finding the Fourth Proportional to 69,851.89, 96,392.93 and 39,635.41

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Solution

The fourth proportional to 69,851.89, 96,392.93 and 39,635.41 is: 54,695.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851.89 : 96,392.93 = 39,635.41 : x
  2. Step 2: Convert to fraction form
    69,851.89/96,392.93 = 39,635.41/x
  3. Step 3: Cross multiply
    69,851.89x = 96,392.93 × 39,635.41
  4. Step 4: Simplify right side
    69,851.89x = 3,820,573,011.12
  5. Step 5: Solve for x
    x = 3,820,573,011.12/69,851.89
  6. Step 6: Final answer
    x = 54,695.34

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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.