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Finding the Fourth Proportional to 71,168.63, 98,216.96 and 39,336.84

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Solution

The fourth proportional to 71,168.63, 98,216.96 and 39,336.84 is: 54,287.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,168.63 : 98,216.96 = 39,336.84 : x
  2. Step 2: Convert to fraction form
    71,168.63/98,216.96 = 39,336.84/x
  3. Step 3: Cross multiply
    71,168.63x = 98,216.96 × 39,336.84
  4. Step 4: Simplify right side
    71,168.63x = 3,863,544,644.12
  5. Step 5: Solve for x
    x = 3,863,544,644.12/71,168.63
  6. Step 6: Final answer
    x = 54,287.19

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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.