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Finding the Fourth Proportional to 83,763.80, 115,589.78 and 46,039.40

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Solution

The fourth proportional to 83,763.80, 115,589.78 and 46,039.40 is: 63,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,763.80 : 115,589.78 = 46,039.40 : x
  2. Step 2: Convert to fraction form
    83,763.80/115,589.78 = 46,039.40/x
  3. Step 3: Cross multiply
    83,763.80x = 115,589.78 × 46,039.40
  4. Step 4: Simplify right side
    83,763.80x = 5,321,684,117.33
  5. Step 5: Solve for x
    x = 5,321,684,117.33/83,763.80
  6. Step 6: Final answer
    x = 63,532.03

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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.