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Finding the Fourth Proportional to 5,708.80, 8,548.80 and 3,750.40

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Solution

The fourth proportional to 5,708.80, 8,548.80 and 3,750.40 is: 5,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,708.80 : 8,548.80 = 3,750.40 : x
  2. Step 2: Convert to fraction form
    5,708.80/8,548.80 = 3,750.40/x
  3. Step 3: Cross multiply
    5,708.80x = 8,548.80 × 3,750.40
  4. Step 4: Simplify right side
    5,708.80x = 32,061,419.52
  5. Step 5: Solve for x
    x = 32,061,419.52/5,708.80
  6. Step 6: Final answer
    x = 5,616.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.