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Finding the Fourth Proportional to 84,897.66, 127,361.86 and 27,974.60

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Solution

The fourth proportional to 84,897.66, 127,361.86 and 27,974.60 is: 41,966.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,897.66 : 127,361.86 = 27,974.60 : x
  2. Step 2: Convert to fraction form
    84,897.66/127,361.86 = 27,974.60/x
  3. Step 3: Cross multiply
    84,897.66x = 127,361.86 × 27,974.60
  4. Step 4: Simplify right side
    84,897.66x = 3,562,897,088.76
  5. Step 5: Solve for x
    x = 3,562,897,088.76/84,897.66
  6. Step 6: Final answer
    x = 41,966.96

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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.