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Finding the Fourth Proportional to 83,989.38, 115,905.35 and 46,263.63

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Solution

The fourth proportional to 83,989.38, 115,905.35 and 46,263.63 is: 63,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,989.38 : 115,905.35 = 46,263.63 : x
  2. Step 2: Convert to fraction form
    83,989.38/115,905.35 = 46,263.63/x
  3. Step 3: Cross multiply
    83,989.38x = 115,905.35 × 46,263.63
  4. Step 4: Simplify right side
    83,989.38x = 5,362,202,227.42
  5. Step 5: Solve for x
    x = 5,362,202,227.42/83,989.38
  6. Step 6: Final answer
    x = 63,843.81

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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.