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Finding the Fourth Proportional to 84,797.24, 117,020.64 and 47,078.84

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Solution

The fourth proportional to 84,797.24, 117,020.64 and 47,078.84 is: 64,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.24 : 117,020.64 = 47,078.84 : x
  2. Step 2: Convert to fraction form
    84,797.24/117,020.64 = 47,078.84/x
  3. Step 3: Cross multiply
    84,797.24x = 117,020.64 × 47,078.84
  4. Step 4: Simplify right side
    84,797.24x = 5,509,195,987.26
  5. Step 5: Solve for x
    x = 5,509,195,987.26/84,797.24
  6. Step 6: Final answer
    x = 64,969.05

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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.