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Finding the Fourth Proportional to 70,601.93, 105,923.39 and 28,460.26

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Solution

The fourth proportional to 70,601.93, 105,923.39 and 28,460.26 is: 42,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,601.93 : 105,923.39 = 28,460.26 : x
  2. Step 2: Convert to fraction form
    70,601.93/105,923.39 = 28,460.26/x
  3. Step 3: Cross multiply
    70,601.93x = 105,923.39 × 28,460.26
  4. Step 4: Simplify right side
    70,601.93x = 3,014,607,555.44
  5. Step 5: Solve for x
    x = 3,014,607,555.44/70,601.93
  6. Step 6: Final answer
    x = 42,698.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.