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Finding the Fourth Proportional to 1,832.72, 2,526.36 and 1,551.92

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Solution

The fourth proportional to 1,832.72, 2,526.36 and 1,551.92 is: 2,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,832.72 : 2,526.36 = 1,551.92 : x
  2. Step 2: Convert to fraction form
    1,832.72/2,526.36 = 1,551.92/x
  3. Step 3: Cross multiply
    1,832.72x = 2,526.36 × 1,551.92
  4. Step 4: Simplify right side
    1,832.72x = 3,920,708.61
  5. Step 5: Solve for x
    x = 3,920,708.61/1,832.72
  6. Step 6: Final answer
    x = 2,139.28

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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.