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Finding the Fourth Proportional to 3,700.56, 5,550.78 and 1,103.40

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Solution

The fourth proportional to 3,700.56, 5,550.78 and 1,103.40 is: 1,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,700.56 : 5,550.78 = 1,103.40 : x
  2. Step 2: Convert to fraction form
    3,700.56/5,550.78 = 1,103.40/x
  3. Step 3: Cross multiply
    3,700.56x = 5,550.78 × 1,103.40
  4. Step 4: Simplify right side
    3,700.56x = 6,124,730.65
  5. Step 5: Solve for x
    x = 6,124,730.65/3,700.56
  6. Step 6: Final answer
    x = 1,655.08

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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.