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Finding the Fourth Proportional to 70,383.81, 97,131.08 and 38,552.74

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Solution

The fourth proportional to 70,383.81, 97,131.08 and 38,552.74 is: 53,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,383.81 : 97,131.08 = 38,552.74 : x
  2. Step 2: Convert to fraction form
    70,383.81/97,131.08 = 38,552.74/x
  3. Step 3: Cross multiply
    70,383.81x = 97,131.08 × 38,552.74
  4. Step 4: Simplify right side
    70,383.81x = 3,744,669,126.71
  5. Step 5: Solve for x
    x = 3,744,669,126.71/70,383.81
  6. Step 6: Final answer
    x = 53,203.56

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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.