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Finding the Fourth Proportional to 27,708.80, 41,569.04 and 8,987.38

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Solution

The fourth proportional to 27,708.80, 41,569.04 and 8,987.38 is: 13,482.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.80 : 41,569.04 = 8,987.38 : x
  2. Step 2: Convert to fraction form
    27,708.80/41,569.04 = 8,987.38/x
  3. Step 3: Cross multiply
    27,708.80x = 41,569.04 × 8,987.38
  4. Step 4: Simplify right side
    27,708.80x = 373,596,706.75
  5. Step 5: Solve for x
    x = 373,596,706.75/27,708.80
  6. Step 6: Final answer
    x = 13,482.96

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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.