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Finding the Fourth Proportional to 65,542.84, 90,241.96 and 59,556.64

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Solution

The fourth proportional to 65,542.84, 90,241.96 and 59,556.64 is: 81,999.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,542.84 : 90,241.96 = 59,556.64 : x
  2. Step 2: Convert to fraction form
    65,542.84/90,241.96 = 59,556.64/x
  3. Step 3: Cross multiply
    65,542.84x = 90,241.96 × 59,556.64
  4. Step 4: Simplify right side
    65,542.84x = 5,374,507,924.61
  5. Step 5: Solve for x
    x = 5,374,507,924.61/65,542.84
  6. Step 6: Final answer
    x = 81,999.92

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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.