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Finding the Fourth Proportional to 13,849.44, 20,774.16 and 12,752.16

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Solution

The fourth proportional to 13,849.44, 20,774.16 and 12,752.16 is: 19,128.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,849.44 : 20,774.16 = 12,752.16 : x
  2. Step 2: Convert to fraction form
    13,849.44/20,774.16 = 12,752.16/x
  3. Step 3: Cross multiply
    13,849.44x = 20,774.16 × 12,752.16
  4. Step 4: Simplify right side
    13,849.44x = 264,915,412.19
  5. Step 5: Solve for x
    x = 264,915,412.19/13,849.44
  6. Step 6: Final answer
    x = 19,128.24

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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.