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Finding the Fourth Proportional to 71,063.70, 98,066.32 and 38,797.21

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Solution

The fourth proportional to 71,063.70, 98,066.32 and 38,797.21 is: 53,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,063.70 : 98,066.32 = 38,797.21 : x
  2. Step 2: Convert to fraction form
    71,063.70/98,066.32 = 38,797.21/x
  3. Step 3: Cross multiply
    71,063.70x = 98,066.32 × 38,797.21
  4. Step 4: Simplify right side
    71,063.70x = 3,804,699,610.97
  5. Step 5: Solve for x
    x = 3,804,699,610.97/71,063.70
  6. Step 6: Final answer
    x = 53,539.28

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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.