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Finding the Fourth Proportional to 10,954.80, 16,407.90 and 5,754.60

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Solution

The fourth proportional to 10,954.80, 16,407.90 and 5,754.60 is: 8,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,954.80 : 16,407.90 = 5,754.60 : x
  2. Step 2: Convert to fraction form
    10,954.80/16,407.90 = 5,754.60/x
  3. Step 3: Cross multiply
    10,954.80x = 16,407.90 × 5,754.60
  4. Step 4: Simplify right side
    10,954.80x = 94,420,901.34
  5. Step 5: Solve for x
    x = 94,420,901.34/10,954.80
  6. Step 6: Final answer
    x = 8,619.14

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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.