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Finding the Fourth Proportional to 8,612.94, 11,884.98 and 4,836.53

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Solution

The fourth proportional to 8,612.94, 11,884.98 and 4,836.53 is: 6,673.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,612.94 : 11,884.98 = 4,836.53 : x
  2. Step 2: Convert to fraction form
    8,612.94/11,884.98 = 4,836.53/x
  3. Step 3: Cross multiply
    8,612.94x = 11,884.98 × 4,836.53
  4. Step 4: Simplify right side
    8,612.94x = 57,482,016.11
  5. Step 5: Solve for x
    x = 57,482,016.11/8,612.94
  6. Step 6: Final answer
    x = 6,673.91

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Half 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.