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Finding the Fourth Proportional to 29,080.51, 43,620.78 and 9,359.06

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Solution

The fourth proportional to 29,080.51, 43,620.78 and 9,359.06 is: 14,038.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,080.51 : 43,620.78 = 9,359.06 : x
  2. Step 2: Convert to fraction form
    29,080.51/43,620.78 = 9,359.06/x
  3. Step 3: Cross multiply
    29,080.51x = 43,620.78 × 9,359.06
  4. Step 4: Simplify right side
    29,080.51x = 408,249,279.16
  5. Step 5: Solve for x
    x = 408,249,279.16/29,080.51
  6. Step 6: Final answer
    x = 14,038.59

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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.