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Finding the Fourth Proportional to 5,567.80, 7,679.87 and 3,580.87

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Solution

The fourth proportional to 5,567.80, 7,679.87 and 3,580.87 is: 4,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,567.80 : 7,679.87 = 3,580.87 : x
  2. Step 2: Convert to fraction form
    5,567.80/7,679.87 = 3,580.87/x
  3. Step 3: Cross multiply
    5,567.80x = 7,679.87 × 3,580.87
  4. Step 4: Simplify right side
    5,567.80x = 27,500,598.18
  5. Step 5: Solve for x
    x = 27,500,598.18/5,567.80
  6. Step 6: Final answer
    x = 4,939.22

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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.