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Finding the Fourth Proportional to 5,309.74, 7,963.53 and 2,972.08

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Solution

The fourth proportional to 5,309.74, 7,963.53 and 2,972.08 is: 4,457.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,309.74 : 7,963.53 = 2,972.08 : x
  2. Step 2: Convert to fraction form
    5,309.74/7,963.53 = 2,972.08/x
  3. Step 3: Cross multiply
    5,309.74x = 7,963.53 × 2,972.08
  4. Step 4: Simplify right side
    5,309.74x = 23,668,248.24
  5. Step 5: Solve for x
    x = 23,668,248.24/5,309.74
  6. Step 6: Final answer
    x = 4,457.52

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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.