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Finding the Fourth Proportional to 5,871.12, 8,806.34 and 1,488.30

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Solution

The fourth proportional to 5,871.12, 8,806.34 and 1,488.30 is: 2,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.12 : 8,806.34 = 1,488.30 : x
  2. Step 2: Convert to fraction form
    5,871.12/8,806.34 = 1,488.30/x
  3. Step 3: Cross multiply
    5,871.12x = 8,806.34 × 1,488.30
  4. Step 4: Simplify right side
    5,871.12x = 13,106,475.82
  5. Step 5: Solve for x
    x = 13,106,475.82/5,871.12
  6. Step 6: Final answer
    x = 2,232.36

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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.