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Finding the Fourth Proportional to 85,074.26, 127,616.64 and 25,914.28

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Solution

The fourth proportional to 85,074.26, 127,616.64 and 25,914.28 is: 38,873.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,074.26 : 127,616.64 = 25,914.28 : x
  2. Step 2: Convert to fraction form
    85,074.26/127,616.64 = 25,914.28/x
  3. Step 3: Cross multiply
    85,074.26x = 127,616.64 × 25,914.28
  4. Step 4: Simplify right side
    85,074.26x = 3,307,093,341.62
  5. Step 5: Solve for x
    x = 3,307,093,341.62/85,074.26
  6. Step 6: Final answer
    x = 38,873.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.