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Finding the Fourth Proportional to 3,554.66, 5,293 and 3,515.48

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Solution

The fourth proportional to 3,554.66, 5,293 and 3,515.48 is: 5,234.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.66 : 5,293 = 3,515.48 : x
  2. Step 2: Convert to fraction form
    3,554.66/5,293 = 3,515.48/x
  3. Step 3: Cross multiply
    3,554.66x = 5,293 × 3,515.48
  4. Step 4: Simplify right side
    3,554.66x = 18,607,435.64
  5. Step 5: Solve for x
    x = 18,607,435.64/3,554.66
  6. Step 6: Final answer
    x = 5,234.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.