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Finding the Fourth Proportional to 29,268.52, 43,912.64 and 9,281.28

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Solution

The fourth proportional to 29,268.52, 43,912.64 and 9,281.28 is: 13,925.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,268.52 : 43,912.64 = 9,281.28 : x
  2. Step 2: Convert to fraction form
    29,268.52/43,912.64 = 9,281.28/x
  3. Step 3: Cross multiply
    29,268.52x = 43,912.64 × 9,281.28
  4. Step 4: Simplify right side
    29,268.52x = 407,565,507.38
  5. Step 5: Solve for x
    x = 407,565,507.38/29,268.52
  6. Step 6: Final answer
    x = 13,925.05

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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.