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Finding the Fourth Proportional to 16,507.35, 22,779.99 and 8,953.65

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Solution

The fourth proportional to 16,507.35, 22,779.99 and 8,953.65 is: 12,355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,507.35 : 22,779.99 = 8,953.65 : x
  2. Step 2: Convert to fraction form
    16,507.35/22,779.99 = 8,953.65/x
  3. Step 3: Cross multiply
    16,507.35x = 22,779.99 × 8,953.65
  4. Step 4: Simplify right side
    16,507.35x = 203,964,057.46
  5. Step 5: Solve for x
    x = 203,964,057.46/16,507.35
  6. Step 6: Final answer
    x = 12,355.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.