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Finding the Fourth Proportional to 5,560.56, 8,343 and 1,665.36

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Solution

The fourth proportional to 5,560.56, 8,343 and 1,665.36 is: 2,498.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,560.56 : 8,343 = 1,665.36 : x
  2. Step 2: Convert to fraction form
    5,560.56/8,343 = 1,665.36/x
  3. Step 3: Cross multiply
    5,560.56x = 8,343 × 1,665.36
  4. Step 4: Simplify right side
    5,560.56x = 13,894,098.48
  5. Step 5: Solve for x
    x = 13,894,098.48/5,560.56
  6. Step 6: Final answer
    x = 2,498.69

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1.5x scale

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.