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Finding the Fourth Proportional to 9,889.99, 14,822.84 and 6,135.98

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Solution

The fourth proportional to 9,889.99, 14,822.84 and 6,135.98 is: 9,196.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,889.99 : 14,822.84 = 6,135.98 : x
  2. Step 2: Convert to fraction form
    9,889.99/14,822.84 = 6,135.98/x
  3. Step 3: Cross multiply
    9,889.99x = 14,822.84 × 6,135.98
  4. Step 4: Simplify right side
    9,889.99x = 90,952,591.01
  5. Step 5: Solve for x
    x = 90,952,591.01/9,889.99
  6. Step 6: Final answer
    x = 9,196.43

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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.