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Finding the Fourth Proportional to 84,803.70, 127,205.55 and 25,633.20

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Solution

The fourth proportional to 84,803.70, 127,205.55 and 25,633.20 is: 38,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,803.70 : 127,205.55 = 25,633.20 : x
  2. Step 2: Convert to fraction form
    84,803.70/127,205.55 = 25,633.20/x
  3. Step 3: Cross multiply
    84,803.70x = 127,205.55 × 25,633.20
  4. Step 4: Simplify right side
    84,803.70x = 3,260,685,304.26
  5. Step 5: Solve for x
    x = 3,260,685,304.26/84,803.70
  6. Step 6: Final answer
    x = 38,449.80

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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.