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Finding the Fourth Proportional to 30,560.88, 45,837.66 and 8,376.18

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Solution

The fourth proportional to 30,560.88, 45,837.66 and 8,376.18 is: 12,563.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.88 : 45,837.66 = 8,376.18 : x
  2. Step 2: Convert to fraction form
    30,560.88/45,837.66 = 8,376.18/x
  3. Step 3: Cross multiply
    30,560.88x = 45,837.66 × 8,376.18
  4. Step 4: Simplify right side
    30,560.88x = 383,944,490.94
  5. Step 5: Solve for x
    x = 383,944,490.94/30,560.88
  6. Step 6: Final answer
    x = 12,563.27

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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.