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Finding the Fourth Proportional to 70,832.88, 97,744.32 and 38,998.80

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Solution

The fourth proportional to 70,832.88, 97,744.32 and 38,998.80 is: 53,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,832.88 : 97,744.32 = 38,998.80 : x
  2. Step 2: Convert to fraction form
    70,832.88/97,744.32 = 38,998.80/x
  3. Step 3: Cross multiply
    70,832.88x = 97,744.32 × 38,998.80
  4. Step 4: Simplify right side
    70,832.88x = 3,811,911,186.82
  5. Step 5: Solve for x
    x = 3,811,911,186.82/70,832.88
  6. Step 6: Final answer
    x = 53,815.56

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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.