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Finding the Fourth Proportional to 2,349.50, 3,520.59 and 887.86

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Solution

The fourth proportional to 2,349.50, 3,520.59 and 887.86 is: 1,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,349.50 : 3,520.59 = 887.86 : x
  2. Step 2: Convert to fraction form
    2,349.50/3,520.59 = 887.86/x
  3. Step 3: Cross multiply
    2,349.50x = 3,520.59 × 887.86
  4. Step 4: Simplify right side
    2,349.50x = 3,125,773.43
  5. Step 5: Solve for x
    x = 3,125,773.43/2,349.50
  6. Step 6: Final answer
    x = 1,330.40

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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.