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Finding the Fourth Proportional to 14,473.00, 19,973.28 and 8,422.75

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Solution

The fourth proportional to 14,473.00, 19,973.28 and 8,422.75 is: 11,623.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.00 : 19,973.28 = 8,422.75 : x
  2. Step 2: Convert to fraction form
    14,473.00/19,973.28 = 8,422.75/x
  3. Step 3: Cross multiply
    14,473.00x = 19,973.28 × 8,422.75
  4. Step 4: Simplify right side
    14,473.00x = 168,230,000.67
  5. Step 5: Solve for x
    x = 168,230,000.67/14,473.00
  6. Step 6: Final answer
    x = 11,623.72

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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.