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Finding the Fourth Proportional to 13,952.96, 20,929.32 and 5,627.10

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Solution

The fourth proportional to 13,952.96, 20,929.32 and 5,627.10 is: 8,440.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.96 : 20,929.32 = 5,627.10 : x
  2. Step 2: Convert to fraction form
    13,952.96/20,929.32 = 5,627.10/x
  3. Step 3: Cross multiply
    13,952.96x = 20,929.32 × 5,627.10
  4. Step 4: Simplify right side
    13,952.96x = 117,771,455.06
  5. Step 5: Solve for x
    x = 117,771,455.06/13,952.96
  6. Step 6: Final answer
    x = 8,440.61

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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.