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Finding the Fourth Proportional to 11,762.82, 16,233.48 and 7,777.08

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Solution

The fourth proportional to 11,762.82, 16,233.48 and 7,777.08 is: 10,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,762.82 : 16,233.48 = 7,777.08 : x
  2. Step 2: Convert to fraction form
    11,762.82/16,233.48 = 7,777.08/x
  3. Step 3: Cross multiply
    11,762.82x = 16,233.48 × 7,777.08
  4. Step 4: Simplify right side
    11,762.82x = 126,249,072.64
  5. Step 5: Solve for x
    x = 126,249,072.64/11,762.82
  6. Step 6: Final answer
    x = 10,732.89

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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.