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Finding the Fourth Proportional to 70,533.88, 97,338.90 and 38,704.84

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Solution

The fourth proportional to 70,533.88, 97,338.90 and 38,704.84 is: 53,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,533.88 : 97,338.90 = 38,704.84 : x
  2. Step 2: Convert to fraction form
    70,533.88/97,338.90 = 38,704.84/x
  3. Step 3: Cross multiply
    70,533.88x = 97,338.90 × 38,704.84
  4. Step 4: Simplify right side
    70,533.88x = 3,767,486,550.28
  5. Step 5: Solve for x
    x = 3,767,486,550.28/70,533.88
  6. Step 6: Final answer
    x = 53,413.86

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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.