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Finding the Fourth Proportional to 10,645.44, 15,955.20 and 4,800.48

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Solution

The fourth proportional to 10,645.44, 15,955.20 and 4,800.48 is: 7,194.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.44 : 15,955.20 = 4,800.48 : x
  2. Step 2: Convert to fraction form
    10,645.44/15,955.20 = 4,800.48/x
  3. Step 3: Cross multiply
    10,645.44x = 15,955.20 × 4,800.48
  4. Step 4: Simplify right side
    10,645.44x = 76,592,618.50
  5. Step 5: Solve for x
    x = 76,592,618.50/10,645.44
  6. Step 6: Final answer
    x = 7,194.88

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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.