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Finding the Fourth Proportional to 84,706.44, 127,071.34 and 28,562.58

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Solution

The fourth proportional to 84,706.44, 127,071.34 and 28,562.58 is: 42,847.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,706.44 : 127,071.34 = 28,562.58 : x
  2. Step 2: Convert to fraction form
    84,706.44/127,071.34 = 28,562.58/x
  3. Step 3: Cross multiply
    84,706.44x = 127,071.34 × 28,562.58
  4. Step 4: Simplify right side
    84,706.44x = 3,629,485,314.46
  5. Step 5: Solve for x
    x = 3,629,485,314.46/84,706.44
  6. Step 6: Final answer
    x = 42,847.81

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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.