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Finding the Fourth Proportional to 45,991.98, 68,989.50 and 35,987.49

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Solution

The fourth proportional to 45,991.98, 68,989.50 and 35,987.49 is: 53,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,991.98 : 68,989.50 = 35,987.49 : x
  2. Step 2: Convert to fraction form
    45,991.98/68,989.50 = 35,987.49/x
  3. Step 3: Cross multiply
    45,991.98x = 68,989.50 × 35,987.49
  4. Step 4: Simplify right side
    45,991.98x = 2,482,758,941.36
  5. Step 5: Solve for x
    x = 2,482,758,941.36/45,991.98
  6. Step 6: Final answer
    x = 53,982.43

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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.