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Finding the Fourth Proportional to 8,380.77, 11,565.77 and 4,604.36

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Solution

The fourth proportional to 8,380.77, 11,565.77 and 4,604.36 is: 6,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.77 : 11,565.77 = 4,604.36 : x
  2. Step 2: Convert to fraction form
    8,380.77/11,565.77 = 4,604.36/x
  3. Step 3: Cross multiply
    8,380.77x = 11,565.77 × 4,604.36
  4. Step 4: Simplify right side
    8,380.77x = 53,252,978.86
  5. Step 5: Solve for x
    x = 53,252,978.86/8,380.77
  6. Step 6: Final answer
    x = 6,354.19

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.