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Finding the Fourth Proportional to 8,773.99, 12,108.06 and 5,190.23

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Solution

The fourth proportional to 8,773.99, 12,108.06 and 5,190.23 is: 7,162.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.99 : 12,108.06 = 5,190.23 : x
  2. Step 2: Convert to fraction form
    8,773.99/12,108.06 = 5,190.23/x
  3. Step 3: Cross multiply
    8,773.99x = 12,108.06 × 5,190.23
  4. Step 4: Simplify right side
    8,773.99x = 62,843,646.52
  5. Step 5: Solve for x
    x = 62,843,646.52/8,773.99
  6. Step 6: Final answer
    x = 7,162.50

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Similar ratio
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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.