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Finding the Fourth Proportional to 39,308.31, 58,943.03 and 14,347.35

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Solution

The fourth proportional to 39,308.31, 58,943.03 and 14,347.35 is: 21,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,308.31 : 58,943.03 = 14,347.35 : x
  2. Step 2: Convert to fraction form
    39,308.31/58,943.03 = 14,347.35/x
  3. Step 3: Cross multiply
    39,308.31x = 58,943.03 × 14,347.35
  4. Step 4: Simplify right side
    39,308.31x = 845,676,209.73
  5. Step 5: Solve for x
    x = 845,676,209.73/39,308.31
  6. Step 6: Final answer
    x = 21,513.93

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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.