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Finding the Fourth Proportional to 60,615.82, 90,921.58 and 18,494.20

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Solution

The fourth proportional to 60,615.82, 90,921.58 and 18,494.20 is: 27,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,615.82 : 90,921.58 = 18,494.20 : x
  2. Step 2: Convert to fraction form
    60,615.82/90,921.58 = 18,494.20/x
  3. Step 3: Cross multiply
    60,615.82x = 90,921.58 × 18,494.20
  4. Step 4: Simplify right side
    60,615.82x = 1,681,521,884.84
  5. Step 5: Solve for x
    x = 1,681,521,884.84/60,615.82
  6. Step 6: Final answer
    x = 27,740.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.