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Finding the Fourth Proportional to 15,114.96, 20,850.24 and 14,045.90

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Solution

The fourth proportional to 15,114.96, 20,850.24 and 14,045.90 is: 19,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.96 : 20,850.24 = 14,045.90 : x
  2. Step 2: Convert to fraction form
    15,114.96/20,850.24 = 14,045.90/x
  3. Step 3: Cross multiply
    15,114.96x = 20,850.24 × 14,045.90
  4. Step 4: Simplify right side
    15,114.96x = 292,860,386.02
  5. Step 5: Solve for x
    x = 292,860,386.02/15,114.96
  6. Step 6: Final answer
    x = 19,375.53

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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.