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Finding the Fourth Proportional to 4,379.92, 6,570.50 and 1,457.56

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Solution

The fourth proportional to 4,379.92, 6,570.50 and 1,457.56 is: 2,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,379.92 : 6,570.50 = 1,457.56 : x
  2. Step 2: Convert to fraction form
    4,379.92/6,570.50 = 1,457.56/x
  3. Step 3: Cross multiply
    4,379.92x = 6,570.50 × 1,457.56
  4. Step 4: Simplify right side
    4,379.92x = 9,576,897.98
  5. Step 5: Solve for x
    x = 9,576,897.98/4,379.92
  6. Step 6: Final answer
    x = 2,186.55

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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.