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Finding the Fourth Proportional to 15,459.48, 23,169.78 and 11,085.48

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Solution

The fourth proportional to 15,459.48, 23,169.78 and 11,085.48 is: 16,614.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.48 : 23,169.78 = 11,085.48 : x
  2. Step 2: Convert to fraction form
    15,459.48/23,169.78 = 11,085.48/x
  3. Step 3: Cross multiply
    15,459.48x = 23,169.78 × 11,085.48
  4. Step 4: Simplify right side
    15,459.48x = 256,848,132.79
  5. Step 5: Solve for x
    x = 256,848,132.79/15,459.48
  6. Step 6: Final answer
    x = 16,614.28

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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.