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Finding the Fourth Proportional to 7,520.65, 11,263.86 and 6,472.31

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Solution

The fourth proportional to 7,520.65, 11,263.86 and 6,472.31 is: 9,693.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.65 : 11,263.86 = 6,472.31 : x
  2. Step 2: Convert to fraction form
    7,520.65/11,263.86 = 6,472.31/x
  3. Step 3: Cross multiply
    7,520.65x = 11,263.86 × 6,472.31
  4. Step 4: Simplify right side
    7,520.65x = 72,903,137.40
  5. Step 5: Solve for x
    x = 72,903,137.40/7,520.65
  6. Step 6: Final answer
    x = 9,693.73

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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.