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Finding the Fourth Proportional to 12,973.77, 19,457.08 and 5,576.65

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Solution

The fourth proportional to 12,973.77, 19,457.08 and 5,576.65 is: 8,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,973.77 : 19,457.08 = 5,576.65 : x
  2. Step 2: Convert to fraction form
    12,973.77/19,457.08 = 5,576.65/x
  3. Step 3: Cross multiply
    12,973.77x = 19,457.08 × 5,576.65
  4. Step 4: Simplify right side
    12,973.77x = 108,505,262.60
  5. Step 5: Solve for x
    x = 108,505,262.60/12,973.77
  6. Step 6: Final answer
    x = 8,363.43

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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.