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Finding the Fourth Proportional to 85,955.95, 118,617.34 and 47,713.28

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Solution

The fourth proportional to 85,955.95, 118,617.34 and 47,713.28 is: 65,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,955.95 : 118,617.34 = 47,713.28 : x
  2. Step 2: Convert to fraction form
    85,955.95/118,617.34 = 47,713.28/x
  3. Step 3: Cross multiply
    85,955.95x = 118,617.34 × 47,713.28
  4. Step 4: Simplify right side
    85,955.95x = 5,659,622,236.99
  5. Step 5: Solve for x
    x = 5,659,622,236.99/85,955.95
  6. Step 6: Final answer
    x = 65,843.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.