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Finding the Fourth Proportional to 7,586.72, 11,360.88 and 5,118.88

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Solution

The fourth proportional to 7,586.72, 11,360.88 and 5,118.88 is: 7,665.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,586.72 : 11,360.88 = 5,118.88 : x
  2. Step 2: Convert to fraction form
    7,586.72/11,360.88 = 5,118.88/x
  3. Step 3: Cross multiply
    7,586.72x = 11,360.88 × 5,118.88
  4. Step 4: Simplify right side
    7,586.72x = 58,154,981.41
  5. Step 5: Solve for x
    x = 58,154,981.41/7,586.72
  6. Step 6: Final answer
    x = 7,665.37

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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.