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Finding the Fourth Proportional to 71,495.20, 98,675.22 and 39,674.32

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Solution

The fourth proportional to 71,495.20, 98,675.22 and 39,674.32 is: 54,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,495.20 : 98,675.22 = 39,674.32 : x
  2. Step 2: Convert to fraction form
    71,495.20/98,675.22 = 39,674.32/x
  3. Step 3: Cross multiply
    71,495.20x = 98,675.22 × 39,674.32
  4. Step 4: Simplify right side
    71,495.20x = 3,914,872,254.35
  5. Step 5: Solve for x
    x = 3,914,872,254.35/71,495.20
  6. Step 6: Final answer
    x = 54,757.13

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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.