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Finding the Fourth Proportional to 8,350.99, 12,463.09 and 8,011.90

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Solution

The fourth proportional to 8,350.99, 12,463.09 and 8,011.90 is: 11,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,350.99 : 12,463.09 = 8,011.90 : x
  2. Step 2: Convert to fraction form
    8,350.99/12,463.09 = 8,011.90/x
  3. Step 3: Cross multiply
    8,350.99x = 12,463.09 × 8,011.90
  4. Step 4: Simplify right side
    8,350.99x = 99,853,030.77
  5. Step 5: Solve for x
    x = 99,853,030.77/8,350.99
  6. Step 6: Final answer
    x = 11,957.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.