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Finding the Fourth Proportional to 5,881.40, 8,805.90 and 5,719.40

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Solution

The fourth proportional to 5,881.40, 8,805.90 and 5,719.40 is: 8,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,881.40 : 8,805.90 = 5,719.40 : x
  2. Step 2: Convert to fraction form
    5,881.40/8,805.90 = 5,719.40/x
  3. Step 3: Cross multiply
    5,881.40x = 8,805.90 × 5,719.40
  4. Step 4: Simplify right side
    5,881.40x = 50,364,464.46
  5. Step 5: Solve for x
    x = 50,364,464.46/5,881.40
  6. Step 6: Final answer
    x = 8,563.35

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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.