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Finding the Fourth Proportional to 4,753.55, 7,130.63 and 1,632.72

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Solution

The fourth proportional to 4,753.55, 7,130.63 and 1,632.72 is: 2,449.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,753.55 : 7,130.63 = 1,632.72 : x
  2. Step 2: Convert to fraction form
    4,753.55/7,130.63 = 1,632.72/x
  3. Step 3: Cross multiply
    4,753.55x = 7,130.63 × 1,632.72
  4. Step 4: Simplify right side
    4,753.55x = 11,642,353.04
  5. Step 5: Solve for x
    x = 11,642,353.04/4,753.55
  6. Step 6: Final answer
    x = 2,449.19

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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.