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Finding the Fourth Proportional to 8,321.18, 11,483.13 and 4,784.12

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Solution

The fourth proportional to 8,321.18, 11,483.13 and 4,784.12 is: 6,602.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.18 : 11,483.13 = 4,784.12 : x
  2. Step 2: Convert to fraction form
    8,321.18/11,483.13 = 4,784.12/x
  3. Step 3: Cross multiply
    8,321.18x = 11,483.13 × 4,784.12
  4. Step 4: Simplify right side
    8,321.18x = 54,936,671.90
  5. Step 5: Solve for x
    x = 54,936,671.90/8,321.18
  6. Step 6: Final answer
    x = 6,602.03

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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.