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Finding the Fourth Proportional to 70,369.54, 97,109.13 and 38,537.98

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Solution

The fourth proportional to 70,369.54, 97,109.13 and 38,537.98 is: 53,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,369.54 : 97,109.13 = 38,537.98 : x
  2. Step 2: Convert to fraction form
    70,369.54/97,109.13 = 38,537.98/x
  3. Step 3: Cross multiply
    70,369.54x = 97,109.13 × 38,537.98
  4. Step 4: Simplify right side
    70,369.54x = 3,742,389,709.76
  5. Step 5: Solve for x
    x = 3,742,389,709.76/70,369.54
  6. Step 6: Final answer
    x = 53,181.96

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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.