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Finding the Fourth Proportional to 70,393.07, 97,144.85 and 38,561.96

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Solution

The fourth proportional to 70,393.07, 97,144.85 and 38,561.96 is: 53,216.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,393.07 : 97,144.85 = 38,561.96 : x
  2. Step 2: Convert to fraction form
    70,393.07/97,144.85 = 38,561.96/x
  3. Step 3: Cross multiply
    70,393.07x = 97,144.85 × 38,561.96
  4. Step 4: Simplify right side
    70,393.07x = 3,746,095,612.73
  5. Step 5: Solve for x
    x = 3,746,095,612.73/70,393.07
  6. Step 6: Final answer
    x = 53,216.83

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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.