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Finding the Fourth Proportional to 5,362.50, 7,400.30 and 2,972.53

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Solution

The fourth proportional to 5,362.50, 7,400.30 and 2,972.53 is: 4,102.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.50 : 7,400.30 = 2,972.53 : x
  2. Step 2: Convert to fraction form
    5,362.50/7,400.30 = 2,972.53/x
  3. Step 3: Cross multiply
    5,362.50x = 7,400.30 × 2,972.53
  4. Step 4: Simplify right side
    5,362.50x = 21,997,602.69
  5. Step 5: Solve for x
    x = 21,997,602.69/5,362.50
  6. Step 6: Final answer
    x = 4,102.11

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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.