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Finding the Fourth Proportional to 51,672.08, 71,308.72 and 29,316.08

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Solution

The fourth proportional to 51,672.08, 71,308.72 and 29,316.08 is: 40,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,672.08 : 71,308.72 = 29,316.08 : x
  2. Step 2: Convert to fraction form
    51,672.08/71,308.72 = 29,316.08/x
  3. Step 3: Cross multiply
    51,672.08x = 71,308.72 × 29,316.08
  4. Step 4: Simplify right side
    51,672.08x = 2,090,492,140.22
  5. Step 5: Solve for x
    x = 2,090,492,140.22/51,672.08
  6. Step 6: Final answer
    x = 40,456.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.