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Finding the Fourth Proportional to 12,152.50, 16,770.46 and 6,563.50

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Solution

The fourth proportional to 12,152.50, 16,770.46 and 6,563.50 is: 9,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152.50 : 16,770.46 = 6,563.50 : x
  2. Step 2: Convert to fraction form
    12,152.50/16,770.46 = 6,563.50/x
  3. Step 3: Cross multiply
    12,152.50x = 16,770.46 × 6,563.50
  4. Step 4: Simplify right side
    12,152.50x = 110,072,914.21
  5. Step 5: Solve for x
    x = 110,072,914.21/12,152.50
  6. Step 6: Final answer
    x = 9,057.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.