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Finding the Fourth Proportional to 10,959.73, 16,427.73 and 4,378.68

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Solution

The fourth proportional to 10,959.73, 16,427.73 and 4,378.68 is: 6,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.73 : 16,427.73 = 4,378.68 : x
  2. Step 2: Convert to fraction form
    10,959.73/16,427.73 = 4,378.68/x
  3. Step 3: Cross multiply
    10,959.73x = 16,427.73 × 4,378.68
  4. Step 4: Simplify right side
    10,959.73x = 71,931,772.80
  5. Step 5: Solve for x
    x = 71,931,772.80/10,959.73
  6. Step 6: Final answer
    x = 6,563.28

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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.