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Finding the Fourth Proportional to 57,516.76, 86,274.82 and 45,852.76

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Solution

The fourth proportional to 57,516.76, 86,274.82 and 45,852.76 is: 68,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,516.76 : 86,274.82 = 45,852.76 : x
  2. Step 2: Convert to fraction form
    57,516.76/86,274.82 = 45,852.76/x
  3. Step 3: Cross multiply
    57,516.76x = 86,274.82 × 45,852.76
  4. Step 4: Simplify right side
    57,516.76x = 3,955,938,615.50
  5. Step 5: Solve for x
    x = 3,955,938,615.50/57,516.76
  6. Step 6: Final answer
    x = 68,778.88

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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.