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Finding the Fourth Proportional to 84,017.88, 115,947.30 and 48,214.44

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Solution

The fourth proportional to 84,017.88, 115,947.30 and 48,214.44 is: 66,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017.88 : 115,947.30 = 48,214.44 : x
  2. Step 2: Convert to fraction form
    84,017.88/115,947.30 = 48,214.44/x
  3. Step 3: Cross multiply
    84,017.88x = 115,947.30 × 48,214.44
  4. Step 4: Simplify right side
    84,017.88x = 5,590,334,139.01
  5. Step 5: Solve for x
    x = 5,590,334,139.01/84,017.88
  6. Step 6: Final answer
    x = 66,537.43

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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.