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Finding the Fourth Proportional to 71,495.98, 98,676.26 and 39,675.13

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Solution

The fourth proportional to 71,495.98, 98,676.26 and 39,675.13 is: 54,758.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,495.98 : 98,676.26 = 39,675.13 : x
  2. Step 2: Convert to fraction form
    71,495.98/98,676.26 = 39,675.13/x
  3. Step 3: Cross multiply
    71,495.98x = 98,676.26 × 39,675.13
  4. Step 4: Simplify right side
    71,495.98x = 3,914,993,245.04
  5. Step 5: Solve for x
    x = 3,914,993,245.04/71,495.98
  6. Step 6: Final answer
    x = 54,758.23

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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.