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Finding the Fourth Proportional to 14,572.76, 21,859.12 and 3,628.76

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Solution

The fourth proportional to 14,572.76, 21,859.12 and 3,628.76 is: 5,443.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.76 : 21,859.12 = 3,628.76 : x
  2. Step 2: Convert to fraction form
    14,572.76/21,859.12 = 3,628.76/x
  3. Step 3: Cross multiply
    14,572.76x = 21,859.12 × 3,628.76
  4. Step 4: Simplify right side
    14,572.76x = 79,321,500.29
  5. Step 5: Solve for x
    x = 79,321,500.29/14,572.76
  6. Step 6: Final answer
    x = 5,443.14

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Similar ratio
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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.