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Finding the Fourth Proportional to 6,483.10, 9,724.65 and 5,187.10

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Solution

The fourth proportional to 6,483.10, 9,724.65 and 5,187.10 is: 7,780.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,483.10 : 9,724.65 = 5,187.10 : x
  2. Step 2: Convert to fraction form
    6,483.10/9,724.65 = 5,187.10/x
  3. Step 3: Cross multiply
    6,483.10x = 9,724.65 × 5,187.10
  4. Step 4: Simplify right side
    6,483.10x = 50,442,732.02
  5. Step 5: Solve for x
    x = 50,442,732.02/6,483.10
  6. Step 6: Final answer
    x = 7,780.65

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Similar ratio
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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.