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Finding the Fourth Proportional to 84,620.40, 116,780.80 and 46,893.84

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Solution

The fourth proportional to 84,620.40, 116,780.80 and 46,893.84 is: 64,716.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,620.40 : 116,780.80 = 46,893.84 : x
  2. Step 2: Convert to fraction form
    84,620.40/116,780.80 = 46,893.84/x
  3. Step 3: Cross multiply
    84,620.40x = 116,780.80 × 46,893.84
  4. Step 4: Simplify right side
    84,620.40x = 5,476,300,150.27
  5. Step 5: Solve for x
    x = 5,476,300,150.27/84,620.40
  6. Step 6: Final answer
    x = 64,716.07

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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.