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Finding the Fourth Proportional to 9,046.64, 12,486.84 and 5,509.82

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Solution

The fourth proportional to 9,046.64, 12,486.84 and 5,509.82 is: 7,605.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,046.64 : 12,486.84 = 5,509.82 : x
  2. Step 2: Convert to fraction form
    9,046.64/12,486.84 = 5,509.82/x
  3. Step 3: Cross multiply
    9,046.64x = 12,486.84 × 5,509.82
  4. Step 4: Simplify right side
    9,046.64x = 68,800,240.77
  5. Step 5: Solve for x
    x = 68,800,240.77/9,046.64
  6. Step 6: Final answer
    x = 7,605.06

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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.