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Finding the Fourth Proportional to 7,089.54, 9,762.21 and 6,673.92

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Solution

The fourth proportional to 7,089.54, 9,762.21 and 6,673.92 is: 9,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.54 : 9,762.21 = 6,673.92 : x
  2. Step 2: Convert to fraction form
    7,089.54/9,762.21 = 6,673.92/x
  3. Step 3: Cross multiply
    7,089.54x = 9,762.21 × 6,673.92
  4. Step 4: Simplify right side
    7,089.54x = 65,152,208.56
  5. Step 5: Solve for x
    x = 65,152,208.56/7,089.54
  6. Step 6: Final answer
    x = 9,189.91

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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.