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Finding the Fourth Proportional to 7,560.96, 11,339.70 and 2,881.50

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Solution

The fourth proportional to 7,560.96, 11,339.70 and 2,881.50 is: 4,321.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,560.96 : 11,339.70 = 2,881.50 : x
  2. Step 2: Convert to fraction form
    7,560.96/11,339.70 = 2,881.50/x
  3. Step 3: Cross multiply
    7,560.96x = 11,339.70 × 2,881.50
  4. Step 4: Simplify right side
    7,560.96x = 32,675,345.55
  5. Step 5: Solve for x
    x = 32,675,345.55/7,560.96
  6. Step 6: Final answer
    x = 4,321.59

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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.