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Finding the Fourth Proportional to 71,076.88, 98,086.24 and 39,245.84

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Solution

The fourth proportional to 71,076.88, 98,086.24 and 39,245.84 is: 54,159.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,076.88 : 98,086.24 = 39,245.84 : x
  2. Step 2: Convert to fraction form
    71,076.88/98,086.24 = 39,245.84/x
  3. Step 3: Cross multiply
    71,076.88x = 98,086.24 × 39,245.84
  4. Step 4: Simplify right side
    71,076.88x = 3,849,476,881.24
  5. Step 5: Solve for x
    x = 3,849,476,881.24/71,076.88
  6. Step 6: Final answer
    x = 54,159.34

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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.