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Finding the Fourth Proportional to 34,336.40, 51,533.40 and 16,821.20

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Solution

The fourth proportional to 34,336.40, 51,533.40 and 16,821.20 is: 25,245.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,336.40 : 51,533.40 = 16,821.20 : x
  2. Step 2: Convert to fraction form
    34,336.40/51,533.40 = 16,821.20/x
  3. Step 3: Cross multiply
    34,336.40x = 51,533.40 × 16,821.20
  4. Step 4: Simplify right side
    34,336.40x = 866,853,628.08
  5. Step 5: Solve for x
    x = 866,853,628.08/34,336.40
  6. Step 6: Final answer
    x = 25,245.91

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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.