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Finding the Fourth Proportional to 4,068.83, 6,103.26 and 990.83

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Solution

The fourth proportional to 4,068.83, 6,103.26 and 990.83 is: 1,486.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,068.83 : 6,103.26 = 990.83 : x
  2. Step 2: Convert to fraction form
    4,068.83/6,103.26 = 990.83/x
  3. Step 3: Cross multiply
    4,068.83x = 6,103.26 × 990.83
  4. Step 4: Simplify right side
    4,068.83x = 6,047,293.11
  5. Step 5: Solve for x
    x = 6,047,293.11/4,068.83
  6. Step 6: Final answer
    x = 1,486.25

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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.