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Finding the Fourth Proportional to 2,999.72, 4,499.58 and 1,052.07

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Solution

The fourth proportional to 2,999.72, 4,499.58 and 1,052.07 is: 1,578.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,999.72 : 4,499.58 = 1,052.07 : x
  2. Step 2: Convert to fraction form
    2,999.72/4,499.58 = 1,052.07/x
  3. Step 3: Cross multiply
    2,999.72x = 4,499.58 × 1,052.07
  4. Step 4: Simplify right side
    2,999.72x = 4,733,873.13
  5. Step 5: Solve for x
    x = 4,733,873.13/2,999.72
  6. Step 6: Final answer
    x = 1,578.11

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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.