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Finding the Fourth Proportional to 70,906.59, 97,850.43 and 39,075.21

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Solution

The fourth proportional to 70,906.59, 97,850.43 and 39,075.21 is: 53,923.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,906.59 : 97,850.43 = 39,075.21 : x
  2. Step 2: Convert to fraction form
    70,906.59/97,850.43 = 39,075.21/x
  3. Step 3: Cross multiply
    70,906.59x = 97,850.43 × 39,075.21
  4. Step 4: Simplify right side
    70,906.59x = 3,823,526,100.84
  5. Step 5: Solve for x
    x = 3,823,526,100.84/70,906.59
  6. Step 6: Final answer
    x = 53,923.42

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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.