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Finding the Fourth Proportional to 5,347.16, 7,375.42 and 3,486.68

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Solution

The fourth proportional to 5,347.16, 7,375.42 and 3,486.68 is: 4,809.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.16 : 7,375.42 = 3,486.68 : x
  2. Step 2: Convert to fraction form
    5,347.16/7,375.42 = 3,486.68/x
  3. Step 3: Cross multiply
    5,347.16x = 7,375.42 × 3,486.68
  4. Step 4: Simplify right side
    5,347.16x = 25,715,729.41
  5. Step 5: Solve for x
    x = 25,715,729.41/5,347.16
  6. Step 6: Final answer
    x = 4,809.23

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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.