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Finding the Fourth Proportional to 10,914.97, 15,050.74 and 7,372.03

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Solution

The fourth proportional to 10,914.97, 15,050.74 and 7,372.03 is: 10,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.97 : 15,050.74 = 7,372.03 : x
  2. Step 2: Convert to fraction form
    10,914.97/15,050.74 = 7,372.03/x
  3. Step 3: Cross multiply
    10,914.97x = 15,050.74 × 7,372.03
  4. Step 4: Simplify right side
    10,914.97x = 110,954,506.80
  5. Step 5: Solve for x
    x = 110,954,506.80/10,914.97
  6. Step 6: Final answer
    x = 10,165.35

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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.