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Finding the Fourth Proportional to 4,605.57, 6,909.57 and 3,345.30

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Solution

The fourth proportional to 4,605.57, 6,909.57 and 3,345.30 is: 5,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,605.57 : 6,909.57 = 3,345.30 : x
  2. Step 2: Convert to fraction form
    4,605.57/6,909.57 = 3,345.30/x
  3. Step 3: Cross multiply
    4,605.57x = 6,909.57 × 3,345.30
  4. Step 4: Simplify right side
    4,605.57x = 23,114,584.52
  5. Step 5: Solve for x
    x = 23,114,584.52/4,605.57
  6. Step 6: Final answer
    x = 5,018.83

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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.