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Finding the Fourth Proportional to 4,535.18, 6,789.40 and 4,423.40

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Solution

The fourth proportional to 4,535.18, 6,789.40 and 4,423.40 is: 6,622.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,535.18 : 6,789.40 = 4,423.40 : x
  2. Step 2: Convert to fraction form
    4,535.18/6,789.40 = 4,423.40/x
  3. Step 3: Cross multiply
    4,535.18x = 6,789.40 × 4,423.40
  4. Step 4: Simplify right side
    4,535.18x = 30,032,231.96
  5. Step 5: Solve for x
    x = 30,032,231.96/4,535.18
  6. Step 6: Final answer
    x = 6,622.06

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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.