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Finding the Fourth Proportional to 13,894.45, 20,842.33 and 4,534.45

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Solution

The fourth proportional to 13,894.45, 20,842.33 and 4,534.45 is: 6,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,894.45 : 20,842.33 = 4,534.45 : x
  2. Step 2: Convert to fraction form
    13,894.45/20,842.33 = 4,534.45/x
  3. Step 3: Cross multiply
    13,894.45x = 20,842.33 × 4,534.45
  4. Step 4: Simplify right side
    13,894.45x = 94,508,439.83
  5. Step 5: Solve for x
    x = 94,508,439.83/13,894.45
  6. Step 6: Final answer
    x = 6,801.89

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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.