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Finding the Fourth Proportional to 29,160, 43,747.36 and 8,383.52

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Solution

The fourth proportional to 29,160, 43,747.36 and 8,383.52 is: 12,577.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,160 : 43,747.36 = 8,383.52 : x
  2. Step 2: Convert to fraction form
    29,160/43,747.36 = 8,383.52/x
  3. Step 3: Cross multiply
    29,160x = 43,747.36 × 8,383.52
  4. Step 4: Simplify right side
    29,160x = 366,756,867.51
  5. Step 5: Solve for x
    x = 366,756,867.51/29,160
  6. Step 6: Final answer
    x = 12,577.40

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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.