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Finding the Fourth Proportional to 14,973.45, 20,662.41 and 8,259.13

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Solution

The fourth proportional to 14,973.45, 20,662.41 and 8,259.13 is: 11,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,973.45 : 20,662.41 = 8,259.13 : x
  2. Step 2: Convert to fraction form
    14,973.45/20,662.41 = 8,259.13/x
  3. Step 3: Cross multiply
    14,973.45x = 20,662.41 × 8,259.13
  4. Step 4: Simplify right side
    14,973.45x = 170,653,530.30
  5. Step 5: Solve for x
    x = 170,653,530.30/14,973.45
  6. Step 6: Final answer
    x = 11,397.07

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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.