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Finding the Fourth Proportional to 18,386.97, 27,584.55 and 6,700.20

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Solution

The fourth proportional to 18,386.97, 27,584.55 and 6,700.20 is: 10,051.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.97 : 27,584.55 = 6,700.20 : x
  2. Step 2: Convert to fraction form
    18,386.97/27,584.55 = 6,700.20/x
  3. Step 3: Cross multiply
    18,386.97x = 27,584.55 × 6,700.20
  4. Step 4: Simplify right side
    18,386.97x = 184,822,001.91
  5. Step 5: Solve for x
    x = 184,822,001.91/18,386.97
  6. Step 6: Final answer
    x = 10,051.79

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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.