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Finding the Fourth Proportional to 29,102.40, 43,655.16 and 8,326.40

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Solution

The fourth proportional to 29,102.40, 43,655.16 and 8,326.40 is: 12,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,102.40 : 43,655.16 = 8,326.40 : x
  2. Step 2: Convert to fraction form
    29,102.40/43,655.16 = 8,326.40/x
  3. Step 3: Cross multiply
    29,102.40x = 43,655.16 × 8,326.40
  4. Step 4: Simplify right side
    29,102.40x = 363,490,324.22
  5. Step 5: Solve for x
    x = 363,490,324.22/29,102.40
  6. Step 6: Final answer
    x = 12,490.05

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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.