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Finding the Fourth Proportional to 57,744.75, 86,617.13 and 13,968.75

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Solution

The fourth proportional to 57,744.75, 86,617.13 and 13,968.75 is: 20,953.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,744.75 : 86,617.13 = 13,968.75 : x
  2. Step 2: Convert to fraction form
    57,744.75/86,617.13 = 13,968.75/x
  3. Step 3: Cross multiply
    57,744.75x = 86,617.13 × 13,968.75
  4. Step 4: Simplify right side
    57,744.75x = 1,209,932,964.84
  5. Step 5: Solve for x
    x = 1,209,932,964.84/57,744.75
  6. Step 6: Final answer
    x = 20,953.13

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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.