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Finding the Fourth Proportional to 8,051.43, 12,079.13 and 6,505.45

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Solution

The fourth proportional to 8,051.43, 12,079.13 and 6,505.45 is: 9,759.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.43 : 12,079.13 = 6,505.45 : x
  2. Step 2: Convert to fraction form
    8,051.43/12,079.13 = 6,505.45/x
  3. Step 3: Cross multiply
    8,051.43x = 12,079.13 × 6,505.45
  4. Step 4: Simplify right side
    8,051.43x = 78,580,113.53
  5. Step 5: Solve for x
    x = 78,580,113.53/8,051.43
  6. Step 6: Final answer
    x = 9,759.77

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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.