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Finding the Fourth Proportional to 70,059.81, 105,145.76 and 36,799.49

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Solution

The fourth proportional to 70,059.81, 105,145.76 and 36,799.49 is: 55,228.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,059.81 : 105,145.76 = 36,799.49 : x
  2. Step 2: Convert to fraction form
    70,059.81/105,145.76 = 36,799.49/x
  3. Step 3: Cross multiply
    70,059.81x = 105,145.76 × 36,799.49
  4. Step 4: Simplify right side
    70,059.81x = 3,869,310,343.66
  5. Step 5: Solve for x
    x = 3,869,310,343.66/70,059.81
  6. Step 6: Final answer
    x = 55,228.67

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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.