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Finding the Fourth Proportional to 55,903.40, 83,855.10 and 26,311.40

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Solution

The fourth proportional to 55,903.40, 83,855.10 and 26,311.40 is: 39,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.40 : 83,855.10 = 26,311.40 : x
  2. Step 2: Convert to fraction form
    55,903.40/83,855.10 = 26,311.40/x
  3. Step 3: Cross multiply
    55,903.40x = 83,855.10 × 26,311.40
  4. Step 4: Simplify right side
    55,903.40x = 2,206,345,078.14
  5. Step 5: Solve for x
    x = 2,206,345,078.14/55,903.40
  6. Step 6: Final answer
    x = 39,467.10

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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.