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Finding the Fourth Proportional to 27,636.80, 41,498.40 and 15,972.80

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Solution

The fourth proportional to 27,636.80, 41,498.40 and 15,972.80 is: 23,984.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.80 : 41,498.40 = 15,972.80 : x
  2. Step 2: Convert to fraction form
    27,636.80/41,498.40 = 15,972.80/x
  3. Step 3: Cross multiply
    27,636.80x = 41,498.40 × 15,972.80
  4. Step 4: Simplify right side
    27,636.80x = 662,845,643.52
  5. Step 5: Solve for x
    x = 662,845,643.52/27,636.80
  6. Step 6: Final answer
    x = 23,984.17

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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.