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Finding the Fourth Proportional to 16,763.80, 25,116.90 and 10,917.40

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Solution

The fourth proportional to 16,763.80, 25,116.90 and 10,917.40 is: 16,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,763.80 : 25,116.90 = 10,917.40 : x
  2. Step 2: Convert to fraction form
    16,763.80/25,116.90 = 10,917.40/x
  3. Step 3: Cross multiply
    16,763.80x = 25,116.90 × 10,917.40
  4. Step 4: Simplify right side
    16,763.80x = 274,211,244.06
  5. Step 5: Solve for x
    x = 274,211,244.06/16,763.80
  6. Step 6: Final answer
    x = 16,357.34

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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.