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Finding the Fourth Proportional to 62,543.64, 86,308.54 and 35,685.66

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Solution

The fourth proportional to 62,543.64, 86,308.54 and 35,685.66 is: 49,245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,543.64 : 86,308.54 = 35,685.66 : x
  2. Step 2: Convert to fraction form
    62,543.64/86,308.54 = 35,685.66/x
  3. Step 3: Cross multiply
    62,543.64x = 86,308.54 × 35,685.66
  4. Step 4: Simplify right side
    62,543.64x = 3,079,977,213.54
  5. Step 5: Solve for x
    x = 3,079,977,213.54/62,543.64
  6. Step 6: Final answer
    x = 49,245.25

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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.