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Finding the Fourth Proportional to 45,513.98, 68,268.84 and 15,938.44

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Solution

The fourth proportional to 45,513.98, 68,268.84 and 15,938.44 is: 23,906.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,513.98 : 68,268.84 = 15,938.44 : x
  2. Step 2: Convert to fraction form
    45,513.98/68,268.84 = 15,938.44/x
  3. Step 3: Cross multiply
    45,513.98x = 68,268.84 × 15,938.44
  4. Step 4: Simplify right side
    45,513.98x = 1,088,098,810.21
  5. Step 5: Solve for x
    x = 1,088,098,810.21/45,513.98
  6. Step 6: Final answer
    x = 23,906.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.