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Finding the Fourth Proportional to 84,796.70, 127,111.35 and 47,374.70

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Solution

The fourth proportional to 84,796.70, 127,111.35 and 47,374.70 is: 71,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,796.70 : 127,111.35 = 47,374.70 : x
  2. Step 2: Convert to fraction form
    84,796.70/127,111.35 = 47,374.70/x
  3. Step 3: Cross multiply
    84,796.70x = 127,111.35 × 47,374.70
  4. Step 4: Simplify right side
    84,796.70x = 6,021,862,072.85
  5. Step 5: Solve for x
    x = 6,021,862,072.85/84,796.70
  6. Step 6: Final answer
    x = 71,015.29

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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.