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Finding the Fourth Proportional to 82,843.40, 124,265.10 and 26,683.40

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Solution

The fourth proportional to 82,843.40, 124,265.10 and 26,683.40 is: 40,025.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,843.40 : 124,265.10 = 26,683.40 : x
  2. Step 2: Convert to fraction form
    82,843.40/124,265.10 = 26,683.40/x
  3. Step 3: Cross multiply
    82,843.40x = 124,265.10 × 26,683.40
  4. Step 4: Simplify right side
    82,843.40x = 3,315,815,369.34
  5. Step 5: Solve for x
    x = 3,315,815,369.34/82,843.40
  6. Step 6: Final answer
    x = 40,025.10

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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.