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Finding the Fourth Proportional to 62,685.92, 86,505 and 35,090.19

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Solution

The fourth proportional to 62,685.92, 86,505 and 35,090.19 is: 48,423.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,685.92 : 86,505 = 35,090.19 : x
  2. Step 2: Convert to fraction form
    62,685.92/86,505 = 35,090.19/x
  3. Step 3: Cross multiply
    62,685.92x = 86,505 × 35,090.19
  4. Step 4: Simplify right side
    62,685.92x = 3,035,476,885.95
  5. Step 5: Solve for x
    x = 3,035,476,885.95/62,685.92
  6. Step 6: Final answer
    x = 48,423.59

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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.