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Finding the Fourth Proportional to 70,369.74, 97,110.20 and 38,538.36

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Solution

The fourth proportional to 70,369.74, 97,110.20 and 38,538.36 is: 53,182.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,369.74 : 97,110.20 = 38,538.36 : x
  2. Step 2: Convert to fraction form
    70,369.74/97,110.20 = 38,538.36/x
  3. Step 3: Cross multiply
    70,369.74x = 97,110.20 × 38,538.36
  4. Step 4: Simplify right side
    70,369.74x = 3,742,467,847.27
  5. Step 5: Solve for x
    x = 3,742,467,847.27/70,369.74
  6. Step 6: Final answer
    x = 53,182.91

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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.