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Finding the Fourth Proportional to 5,619.68, 8,462.48 and 4,897.68

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Solution

The fourth proportional to 5,619.68, 8,462.48 and 4,897.68 is: 7,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.68 : 8,462.48 = 4,897.68 : x
  2. Step 2: Convert to fraction form
    5,619.68/8,462.48 = 4,897.68/x
  3. Step 3: Cross multiply
    5,619.68x = 8,462.48 × 4,897.68
  4. Step 4: Simplify right side
    5,619.68x = 41,446,519.05
  5. Step 5: Solve for x
    x = 41,446,519.05/5,619.68
  6. Step 6: Final answer
    x = 7,375.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.