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Finding the Fourth Proportional to 5,362.99, 7,400.55 and 2,972.79

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Solution

The fourth proportional to 5,362.99, 7,400.55 and 2,972.79 is: 4,102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.99 : 7,400.55 = 2,972.79 : x
  2. Step 2: Convert to fraction form
    5,362.99/7,400.55 = 2,972.79/x
  3. Step 3: Cross multiply
    5,362.99x = 7,400.55 × 2,972.79
  4. Step 4: Simplify right side
    5,362.99x = 22,000,281.03
  5. Step 5: Solve for x
    x = 22,000,281.03/5,362.99
  6. Step 6: Final answer
    x = 4,102.24

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1.5x scale

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.