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Finding the Fourth Proportional to 5,563.32, 7,636.50 and 4,919.76

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Solution

The fourth proportional to 5,563.32, 7,636.50 and 4,919.76 is: 6,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,563.32 : 7,636.50 = 4,919.76 : x
  2. Step 2: Convert to fraction form
    5,563.32/7,636.50 = 4,919.76/x
  3. Step 3: Cross multiply
    5,563.32x = 7,636.50 × 4,919.76
  4. Step 4: Simplify right side
    5,563.32x = 37,569,747.24
  5. Step 5: Solve for x
    x = 37,569,747.24/5,563.32
  6. Step 6: Final answer
    x = 6,753.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.