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Finding the Fourth Proportional to 28,964.90, 43,447.35 and 9,244.90

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Solution

The fourth proportional to 28,964.90, 43,447.35 and 9,244.90 is: 13,867.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,964.90 : 43,447.35 = 9,244.90 : x
  2. Step 2: Convert to fraction form
    28,964.90/43,447.35 = 9,244.90/x
  3. Step 3: Cross multiply
    28,964.90x = 43,447.35 × 9,244.90
  4. Step 4: Simplify right side
    28,964.90x = 401,666,406.02
  5. Step 5: Solve for x
    x = 401,666,406.02/28,964.90
  6. Step 6: Final answer
    x = 13,867.35

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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.