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Finding the Fourth Proportional to 62,999.79, 86,939.67 and 34,705.47

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Solution

The fourth proportional to 62,999.79, 86,939.67 and 34,705.47 is: 47,893.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,999.79 : 86,939.67 = 34,705.47 : x
  2. Step 2: Convert to fraction form
    62,999.79/86,939.67 = 34,705.47/x
  3. Step 3: Cross multiply
    62,999.79x = 86,939.67 × 34,705.47
  4. Step 4: Simplify right side
    62,999.79x = 3,017,282,108.99
  5. Step 5: Solve for x
    x = 3,017,282,108.99/62,999.79
  6. Step 6: Final answer
    x = 47,893.53

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1.5x scale

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.