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Finding the Fourth Proportional to 13,114.53, 18,098.42 and 7,449.45

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Solution

The fourth proportional to 13,114.53, 18,098.42 and 7,449.45 is: 10,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.53 : 18,098.42 = 7,449.45 : x
  2. Step 2: Convert to fraction form
    13,114.53/18,098.42 = 7,449.45/x
  3. Step 3: Cross multiply
    13,114.53x = 18,098.42 × 7,449.45
  4. Step 4: Simplify right side
    13,114.53x = 134,823,237.62
  5. Step 5: Solve for x
    x = 134,823,237.62/13,114.53
  6. Step 6: Final answer
    x = 10,280.45

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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.