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Finding the Fourth Proportional to 19,676.74, 27,153.93 and 10,724.25

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Solution

The fourth proportional to 19,676.74, 27,153.93 and 10,724.25 is: 14,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,676.74 : 27,153.93 = 10,724.25 : x
  2. Step 2: Convert to fraction form
    19,676.74/27,153.93 = 10,724.25/x
  3. Step 3: Cross multiply
    19,676.74x = 27,153.93 × 10,724.25
  4. Step 4: Simplify right side
    19,676.74x = 291,205,533.80
  5. Step 5: Solve for x
    x = 291,205,533.80/19,676.74
  6. Step 6: Final answer
    x = 14,799.48

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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.