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Finding the Fourth Proportional to 15,871.55, 23,818.28 and 5,483.30

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Solution

The fourth proportional to 15,871.55, 23,818.28 and 5,483.30 is: 8,228.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.55 : 23,818.28 = 5,483.30 : x
  2. Step 2: Convert to fraction form
    15,871.55/23,818.28 = 5,483.30/x
  3. Step 3: Cross multiply
    15,871.55x = 23,818.28 × 5,483.30
  4. Step 4: Simplify right side
    15,871.55x = 130,602,774.72
  5. Step 5: Solve for x
    x = 130,602,774.72/15,871.55
  6. Step 6: Final answer
    x = 8,228.73

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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.