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Finding the Fourth Proportional to 5,671.23, 8,505.73 and 5,389.93

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Solution

The fourth proportional to 5,671.23, 8,505.73 and 5,389.93 is: 8,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,671.23 : 8,505.73 = 5,389.93 : x
  2. Step 2: Convert to fraction form
    5,671.23/8,505.73 = 5,389.93/x
  3. Step 3: Cross multiply
    5,671.23x = 8,505.73 × 5,389.93
  4. Step 4: Simplify right side
    5,671.23x = 45,845,243.93
  5. Step 5: Solve for x
    x = 45,845,243.93/5,671.23
  6. Step 6: Final answer
    x = 8,083.83

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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.