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Finding the Fourth Proportional to 4,755.84, 7,131.71 and 1,636.16

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Solution

The fourth proportional to 4,755.84, 7,131.71 and 1,636.16 is: 2,453.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,755.84 : 7,131.71 = 1,636.16 : x
  2. Step 2: Convert to fraction form
    4,755.84/7,131.71 = 1,636.16/x
  3. Step 3: Cross multiply
    4,755.84x = 7,131.71 × 1,636.16
  4. Step 4: Simplify right side
    4,755.84x = 11,668,618.63
  5. Step 5: Solve for x
    x = 11,668,618.63/4,755.84
  6. Step 6: Final answer
    x = 2,453.53

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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.