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Finding the Third Proportional to 57,007.88 and 85,854

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Solution

The third proportional to 57,007.88 and 85,854 is: 129,296.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.88 : 85,854 = 85,854 : x
  2. Step 2: Convert to fraction form
    57,007.88/85,854 = 85,854/x
  3. Step 3: Cross multiply
    57,007.88x = 85,854 × 85,854
  4. Step 4: Simplify right side
    57,007.88x = 7,370,909,316
  5. Step 5: Solve for x
    x = 7,370,909,316/57,007.88
  6. Step 6: Final answer
    x = 129,296.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.