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Finding the Fourth Proportional to 8,555.95, 12,832.51 and 3,007.99

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Solution

The fourth proportional to 8,555.95, 12,832.51 and 3,007.99 is: 4,511.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.95 : 12,832.51 = 3,007.99 : x
  2. Step 2: Convert to fraction form
    8,555.95/12,832.51 = 3,007.99/x
  3. Step 3: Cross multiply
    8,555.95x = 12,832.51 × 3,007.99
  4. Step 4: Simplify right side
    8,555.95x = 38,600,061.75
  5. Step 5: Solve for x
    x = 38,600,061.75/8,555.95
  6. Step 6: Final answer
    x = 4,511.49

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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.