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Finding the Fourth Proportional to 10,572.12, 14,588.79 and 5,856

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Solution

The fourth proportional to 10,572.12, 14,588.79 and 5,856 is: 8,080.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.12 : 14,588.79 = 5,856 : x
  2. Step 2: Convert to fraction form
    10,572.12/14,588.79 = 5,856/x
  3. Step 3: Cross multiply
    10,572.12x = 14,588.79 × 5,856
  4. Step 4: Simplify right side
    10,572.12x = 85,431,954.24
  5. Step 5: Solve for x
    x = 85,431,954.24/10,572.12
  6. Step 6: Final answer
    x = 8,080.87

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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.