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Finding the Fourth Proportional to 5,655.90, 8,483.81 and 3,983.15

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Solution

The fourth proportional to 5,655.90, 8,483.81 and 3,983.15 is: 5,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,655.90 : 8,483.81 = 3,983.15 : x
  2. Step 2: Convert to fraction form
    5,655.90/8,483.81 = 3,983.15/x
  3. Step 3: Cross multiply
    5,655.90x = 8,483.81 × 3,983.15
  4. Step 4: Simplify right side
    5,655.90x = 33,792,298.84
  5. Step 5: Solve for x
    x = 33,792,298.84/5,655.90
  6. Step 6: Final answer
    x = 5,974.70

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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.