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Finding the Fourth Proportional to 8,393.64, 12,586.32 and 4,884.84

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Solution

The fourth proportional to 8,393.64, 12,586.32 and 4,884.84 is: 7,324.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.64 : 12,586.32 = 4,884.84 : x
  2. Step 2: Convert to fraction form
    8,393.64/12,586.32 = 4,884.84/x
  3. Step 3: Cross multiply
    8,393.64x = 12,586.32 × 4,884.84
  4. Step 4: Simplify right side
    8,393.64x = 61,482,159.39
  5. Step 5: Solve for x
    x = 61,482,159.39/8,393.64
  6. Step 6: Final answer
    x = 7,324.85

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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.