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Finding the Fourth Proportional to 19,554.21, 29,331.01 and 7,867.13

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Solution

The fourth proportional to 19,554.21, 29,331.01 and 7,867.13 is: 11,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,554.21 : 29,331.01 = 7,867.13 : x
  2. Step 2: Convert to fraction form
    19,554.21/29,331.01 = 7,867.13/x
  3. Step 3: Cross multiply
    19,554.21x = 29,331.01 × 7,867.13
  4. Step 4: Simplify right side
    19,554.21x = 230,750,731.88
  5. Step 5: Solve for x
    x = 230,750,731.88/19,554.21
  6. Step 6: Final answer
    x = 11,800.57

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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.