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Finding the Fourth Proportional to 27,291.84, 40,955.04 and 15,627.84

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Solution

The fourth proportional to 27,291.84, 40,955.04 and 15,627.84 is: 23,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,291.84 : 40,955.04 = 15,627.84 : x
  2. Step 2: Convert to fraction form
    27,291.84/40,955.04 = 15,627.84/x
  3. Step 3: Cross multiply
    27,291.84x = 40,955.04 × 15,627.84
  4. Step 4: Simplify right side
    27,291.84x = 640,038,812.31
  5. Step 5: Solve for x
    x = 640,038,812.31/27,291.84
  6. Step 6: Final answer
    x = 23,451.65

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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.