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Finding the Fourth Proportional to 3,554.88, 4,905.12 and 2,062.45

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Solution

The fourth proportional to 3,554.88, 4,905.12 and 2,062.45 is: 2,845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.88 : 4,905.12 = 2,062.45 : x
  2. Step 2: Convert to fraction form
    3,554.88/4,905.12 = 2,062.45/x
  3. Step 3: Cross multiply
    3,554.88x = 4,905.12 × 2,062.45
  4. Step 4: Simplify right side
    3,554.88x = 10,116,564.74
  5. Step 5: Solve for x
    x = 10,116,564.74/3,554.88
  6. Step 6: Final answer
    x = 2,845.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.