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Finding the Fourth Proportional to 84,825.77, 127,222.25 and 25,647.57

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Solution

The fourth proportional to 84,825.77, 127,222.25 and 25,647.57 is: 38,466.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,825.77 : 127,222.25 = 25,647.57 : x
  2. Step 2: Convert to fraction form
    84,825.77/127,222.25 = 25,647.57/x
  3. Step 3: Cross multiply
    84,825.77x = 127,222.25 × 25,647.57
  4. Step 4: Simplify right side
    84,825.77x = 3,262,941,434.19
  5. Step 5: Solve for x
    x = 3,262,941,434.19/84,825.77
  6. Step 6: Final answer
    x = 38,466.40

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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.