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Finding the Fourth Proportional to 58,717.86, 81,097.95 and 38,664.39

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Solution

The fourth proportional to 58,717.86, 81,097.95 and 38,664.39 is: 53,401.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,717.86 : 81,097.95 = 38,664.39 : x
  2. Step 2: Convert to fraction form
    58,717.86/81,097.95 = 38,664.39/x
  3. Step 3: Cross multiply
    58,717.86x = 81,097.95 × 38,664.39
  4. Step 4: Simplify right side
    58,717.86x = 3,135,602,767.00
  5. Step 5: Solve for x
    x = 3,135,602,767.00/58,717.86
  6. Step 6: Final answer
    x = 53,401.18

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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.