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Finding the Fourth Proportional to 10,969.40, 16,454.10 and 9,932.60

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Solution

The fourth proportional to 10,969.40, 16,454.10 and 9,932.60 is: 14,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.40 : 16,454.10 = 9,932.60 : x
  2. Step 2: Convert to fraction form
    10,969.40/16,454.10 = 9,932.60/x
  3. Step 3: Cross multiply
    10,969.40x = 16,454.10 × 9,932.60
  4. Step 4: Simplify right side
    10,969.40x = 163,431,993.66
  5. Step 5: Solve for x
    x = 163,431,993.66/10,969.40
  6. Step 6: Final answer
    x = 14,898.90

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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.