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Finding the Fourth Proportional to 10,789.84, 14,889.94 and 6,074.11

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Solution

The fourth proportional to 10,789.84, 14,889.94 and 6,074.11 is: 8,382.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,789.84 : 14,889.94 = 6,074.11 : x
  2. Step 2: Convert to fraction form
    10,789.84/14,889.94 = 6,074.11/x
  3. Step 3: Cross multiply
    10,789.84x = 14,889.94 × 6,074.11
  4. Step 4: Simplify right side
    10,789.84x = 90,443,133.45
  5. Step 5: Solve for x
    x = 90,443,133.45/10,789.84
  6. Step 6: Final answer
    x = 8,382.25

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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.