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Finding the Fourth Proportional to 5,554.64, 8,331 and 1,856.48

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Solution

The fourth proportional to 5,554.64, 8,331 and 1,856.48 is: 2,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,554.64 : 8,331 = 1,856.48 : x
  2. Step 2: Convert to fraction form
    5,554.64/8,331 = 1,856.48/x
  3. Step 3: Cross multiply
    5,554.64x = 8,331 × 1,856.48
  4. Step 4: Simplify right side
    5,554.64x = 15,466,334.88
  5. Step 5: Solve for x
    x = 15,466,334.88/5,554.64
  6. Step 6: Final answer
    x = 2,784.40

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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.