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Finding the Fourth Proportional to 16,485.48, 24,744.42 and 12,090.42

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Solution

The fourth proportional to 16,485.48, 24,744.42 and 12,090.42 is: 18,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,485.48 : 24,744.42 = 12,090.42 : x
  2. Step 2: Convert to fraction form
    16,485.48/24,744.42 = 12,090.42/x
  3. Step 3: Cross multiply
    16,485.48x = 24,744.42 × 12,090.42
  4. Step 4: Simplify right side
    16,485.48x = 299,170,430.46
  5. Step 5: Solve for x
    x = 299,170,430.46/16,485.48
  6. Step 6: Final answer
    x = 18,147.51

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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.