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Finding the Fourth Proportional to 70,341.87, 97,072.08 and 38,513.73

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Solution

The fourth proportional to 70,341.87, 97,072.08 and 38,513.73 is: 53,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,341.87 : 97,072.08 = 38,513.73 : x
  2. Step 2: Convert to fraction form
    70,341.87/97,072.08 = 38,513.73/x
  3. Step 3: Cross multiply
    70,341.87x = 97,072.08 × 38,513.73
  4. Step 4: Simplify right side
    70,341.87x = 3,738,607,879.66
  5. Step 5: Solve for x
    x = 3,738,607,879.66/70,341.87
  6. Step 6: Final answer
    x = 53,149.11

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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.