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Finding the Fourth Proportional to 70,536.96, 97,340.74 and 38,706.39

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Solution

The fourth proportional to 70,536.96, 97,340.74 and 38,706.39 is: 53,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,536.96 : 97,340.74 = 38,706.39 : x
  2. Step 2: Convert to fraction form
    70,536.96/97,340.74 = 38,706.39/x
  3. Step 3: Cross multiply
    70,536.96x = 97,340.74 × 38,706.39
  4. Step 4: Simplify right side
    70,536.96x = 3,767,708,548.56
  5. Step 5: Solve for x
    x = 3,767,708,548.56/70,536.96
  6. Step 6: Final answer
    x = 53,414.67

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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.