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Finding the Fourth Proportional to 12,562.60, 18,843.90 and 10,683.40

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Solution

The fourth proportional to 12,562.60, 18,843.90 and 10,683.40 is: 16,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,562.60 : 18,843.90 = 10,683.40 : x
  2. Step 2: Convert to fraction form
    12,562.60/18,843.90 = 10,683.40/x
  3. Step 3: Cross multiply
    12,562.60x = 18,843.90 × 10,683.40
  4. Step 4: Simplify right side
    12,562.60x = 201,316,921.26
  5. Step 5: Solve for x
    x = 201,316,921.26/12,562.60
  6. Step 6: Final answer
    x = 16,025.10

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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.