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Finding the Fourth Proportional to 8,337.12, 11,505 and 4,611.12

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Solution

The fourth proportional to 8,337.12, 11,505 and 4,611.12 is: 6,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,337.12 : 11,505 = 4,611.12 : x
  2. Step 2: Convert to fraction form
    8,337.12/11,505 = 4,611.12/x
  3. Step 3: Cross multiply
    8,337.12x = 11,505 × 4,611.12
  4. Step 4: Simplify right side
    8,337.12x = 53,050,935.60
  5. Step 5: Solve for x
    x = 53,050,935.60/8,337.12
  6. Step 6: Final answer
    x = 6,363.22

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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.