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Finding the Fourth Proportional to 19,617.74, 27,063.54 and 11,655.44

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Solution

The fourth proportional to 19,617.74, 27,063.54 and 11,655.44 is: 16,079.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,617.74 : 27,063.54 = 11,655.44 : x
  2. Step 2: Convert to fraction form
    19,617.74/27,063.54 = 11,655.44/x
  3. Step 3: Cross multiply
    19,617.74x = 27,063.54 × 11,655.44
  4. Step 4: Simplify right side
    19,617.74x = 315,437,331.34
  5. Step 5: Solve for x
    x = 315,437,331.34/19,617.74
  6. Step 6: Final answer
    x = 16,079.19

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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.