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Finding the Fourth Proportional to 5,541.10, 8,311.65 and 5,322.40

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Solution

The fourth proportional to 5,541.10, 8,311.65 and 5,322.40 is: 7,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,541.10 : 8,311.65 = 5,322.40 : x
  2. Step 2: Convert to fraction form
    5,541.10/8,311.65 = 5,322.40/x
  3. Step 3: Cross multiply
    5,541.10x = 8,311.65 × 5,322.40
  4. Step 4: Simplify right side
    5,541.10x = 44,237,925.96
  5. Step 5: Solve for x
    x = 44,237,925.96/5,541.10
  6. Step 6: Final answer
    x = 7,983.60

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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.