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Finding the Fourth Proportional to 27,547.65, 41,229.72 and 20,936.88

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Solution

The fourth proportional to 27,547.65, 41,229.72 and 20,936.88 is: 31,335.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,547.65 : 41,229.72 = 20,936.88 : x
  2. Step 2: Convert to fraction form
    27,547.65/41,229.72 = 20,936.88/x
  3. Step 3: Cross multiply
    27,547.65x = 41,229.72 × 20,936.88
  4. Step 4: Simplify right side
    27,547.65x = 863,221,700.07
  5. Step 5: Solve for x
    x = 863,221,700.07/27,547.65
  6. Step 6: Final answer
    x = 31,335.58

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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.