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Finding the Fourth Proportional to 9,789.03, 14,684.76 and 3,215.88

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Solution

The fourth proportional to 9,789.03, 14,684.76 and 3,215.88 is: 4,824.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789.03 : 14,684.76 = 3,215.88 : x
  2. Step 2: Convert to fraction form
    9,789.03/14,684.76 = 3,215.88/x
  3. Step 3: Cross multiply
    9,789.03x = 14,684.76 × 3,215.88
  4. Step 4: Simplify right side
    9,789.03x = 47,224,425.99
  5. Step 5: Solve for x
    x = 47,224,425.99/9,789.03
  6. Step 6: Final answer
    x = 4,824.22

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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.