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Finding the Fourth Proportional to 19,616.56, 27,055.56 and 16,272.88

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Solution

The fourth proportional to 19,616.56, 27,055.56 and 16,272.88 is: 22,443.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,616.56 : 27,055.56 = 16,272.88 : x
  2. Step 2: Convert to fraction form
    19,616.56/27,055.56 = 16,272.88/x
  3. Step 3: Cross multiply
    19,616.56x = 27,055.56 × 16,272.88
  4. Step 4: Simplify right side
    19,616.56x = 440,271,881.21
  5. Step 5: Solve for x
    x = 440,271,881.21/19,616.56
  6. Step 6: Final answer
    x = 22,443.89

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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.