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Finding the Fourth Proportional to 7,009.99, 9,672.68 and 4,177.29

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Solution

The fourth proportional to 7,009.99, 9,672.68 and 4,177.29 is: 5,764.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,009.99 : 9,672.68 = 4,177.29 : x
  2. Step 2: Convert to fraction form
    7,009.99/9,672.68 = 4,177.29/x
  3. Step 3: Cross multiply
    7,009.99x = 9,672.68 × 4,177.29
  4. Step 4: Simplify right side
    7,009.99x = 40,405,604.93
  5. Step 5: Solve for x
    x = 40,405,604.93/7,009.99
  6. Step 6: Final answer
    x = 5,764.00

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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.