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Finding the Fourth Proportional to 5,541.32, 8,312.05 and 1,843.55

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Solution

The fourth proportional to 5,541.32, 8,312.05 and 1,843.55 is: 2,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.32 : 8,312.05 = 1,843.55 : x
  2. Step 2: Convert to fraction form
    5,541.32/8,312.05 = 1,843.55/x
  3. Step 3: Cross multiply
    5,541.32x = 8,312.05 × 1,843.55
  4. Step 4: Simplify right side
    5,541.32x = 15,323,671.69
  5. Step 5: Solve for x
    x = 15,323,671.69/5,541.32
  6. Step 6: Final answer
    x = 2,765.35

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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.