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Finding the Fourth Proportional to 8,683.61, 13,025.41 and 3,132.88

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Solution

The fourth proportional to 8,683.61, 13,025.41 and 3,132.88 is: 4,699.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.61 : 13,025.41 = 3,132.88 : x
  2. Step 2: Convert to fraction form
    8,683.61/13,025.41 = 3,132.88/x
  3. Step 3: Cross multiply
    8,683.61x = 13,025.41 × 3,132.88
  4. Step 4: Simplify right side
    8,683.61x = 40,807,006.09
  5. Step 5: Solve for x
    x = 40,807,006.09/8,683.61
  6. Step 6: Final answer
    x = 4,699.32

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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.