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Finding the Fourth Proportional to 8,079.93, 11,124.99 and 7,341.80

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Solution

The fourth proportional to 8,079.93, 11,124.99 and 7,341.80 is: 10,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.93 : 11,124.99 = 7,341.80 : x
  2. Step 2: Convert to fraction form
    8,079.93/11,124.99 = 7,341.80/x
  3. Step 3: Cross multiply
    8,079.93x = 11,124.99 × 7,341.80
  4. Step 4: Simplify right side
    8,079.93x = 81,677,395.96
  5. Step 5: Solve for x
    x = 81,677,395.96/8,079.93
  6. Step 6: Final answer
    x = 10,108.68

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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.