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Finding the Fourth Proportional to 55,190.10, 82,785.15 and 55,190.10

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Solution

The fourth proportional to 55,190.10, 82,785.15 and 55,190.10 is: 82,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,190.10 : 82,785.15 = 55,190.10 : x
  2. Step 2: Convert to fraction form
    55,190.10/82,785.15 = 55,190.10/x
  3. Step 3: Cross multiply
    55,190.10x = 82,785.15 × 55,190.10
  4. Step 4: Simplify right side
    55,190.10x = 4,568,920,707.02
  5. Step 5: Solve for x
    x = 4,568,920,707.02/55,190.10
  6. Step 6: Final answer
    x = 82,785.15

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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.