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Finding the Fourth Proportional to 7,161.99, 10,740.90 and 3,001.89

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Solution

The fourth proportional to 7,161.99, 10,740.90 and 3,001.89 is: 4,501.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.99 : 10,740.90 = 3,001.89 : x
  2. Step 2: Convert to fraction form
    7,161.99/10,740.90 = 3,001.89/x
  3. Step 3: Cross multiply
    7,161.99x = 10,740.90 × 3,001.89
  4. Step 4: Simplify right side
    7,161.99x = 32,243,000.30
  5. Step 5: Solve for x
    x = 32,243,000.30/7,161.99
  6. Step 6: Final answer
    x = 4,501.96

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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.