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Finding the Fourth Proportional to 62,809.86, 86,681.46 and 35,951.74

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Solution

The fourth proportional to 62,809.86, 86,681.46 and 35,951.74 is: 49,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,809.86 : 86,681.46 = 35,951.74 : x
  2. Step 2: Convert to fraction form
    62,809.86/86,681.46 = 35,951.74/x
  3. Step 3: Cross multiply
    62,809.86x = 86,681.46 × 35,951.74
  4. Step 4: Simplify right side
    62,809.86x = 3,116,349,312.74
  5. Step 5: Solve for x
    x = 3,116,349,312.74/62,809.86
  6. Step 6: Final answer
    x = 49,615.61

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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.