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Finding the Fourth Proportional to 70,733.34, 106,120.62 and 28,591.56

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Solution

The fourth proportional to 70,733.34, 106,120.62 and 28,591.56 is: 42,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,733.34 : 106,120.62 = 28,591.56 : x
  2. Step 2: Convert to fraction form
    70,733.34/106,120.62 = 28,591.56/x
  3. Step 3: Cross multiply
    70,733.34x = 106,120.62 × 28,591.56
  4. Step 4: Simplify right side
    70,733.34x = 3,034,154,073.97
  5. Step 5: Solve for x
    x = 3,034,154,073.97/70,733.34
  6. Step 6: Final answer
    x = 42,895.67

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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.