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Finding the Fourth Proportional to 7,174.80, 10,762.07 and 2,957.13

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Solution

The fourth proportional to 7,174.80, 10,762.07 and 2,957.13 is: 4,435.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,174.80 : 10,762.07 = 2,957.13 : x
  2. Step 2: Convert to fraction form
    7,174.80/10,762.07 = 2,957.13/x
  3. Step 3: Cross multiply
    7,174.80x = 10,762.07 × 2,957.13
  4. Step 4: Simplify right side
    7,174.80x = 31,824,825.27
  5. Step 5: Solve for x
    x = 31,824,825.27/7,174.80
  6. Step 6: Final answer
    x = 4,435.64

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1.5x scale

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.