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Finding the Fourth Proportional to 70,019.44, 96,629.16 and 38,190.14

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Solution

The fourth proportional to 70,019.44, 96,629.16 and 38,190.14 is: 52,703.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,019.44 : 96,629.16 = 38,190.14 : x
  2. Step 2: Convert to fraction form
    70,019.44/96,629.16 = 38,190.14/x
  3. Step 3: Cross multiply
    70,019.44x = 96,629.16 × 38,190.14
  4. Step 4: Simplify right side
    70,019.44x = 3,690,281,148.48
  5. Step 5: Solve for x
    x = 3,690,281,148.48/70,019.44
  6. Step 6: Final answer
    x = 52,703.67

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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.