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Finding the Fourth Proportional to 12,079.98, 16,666.07 and 7,604.01

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Solution

The fourth proportional to 12,079.98, 16,666.07 and 7,604.01 is: 10,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.98 : 16,666.07 = 7,604.01 : x
  2. Step 2: Convert to fraction form
    12,079.98/16,666.07 = 7,604.01/x
  3. Step 3: Cross multiply
    12,079.98x = 16,666.07 × 7,604.01
  4. Step 4: Simplify right side
    12,079.98x = 126,728,924.92
  5. Step 5: Solve for x
    x = 126,728,924.92/12,079.98
  6. Step 6: Final answer
    x = 10,490.82

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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.