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Finding the Fourth Proportional to 70,077.80, 105,054.20 and 25,694.22

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Solution

The fourth proportional to 70,077.80, 105,054.20 and 25,694.22 is: 38,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,077.80 : 105,054.20 = 25,694.22 : x
  2. Step 2: Convert to fraction form
    70,077.80/105,054.20 = 25,694.22/x
  3. Step 3: Cross multiply
    70,077.80x = 105,054.20 × 25,694.22
  4. Step 4: Simplify right side
    70,077.80x = 2,699,285,726.72
  5. Step 5: Solve for x
    x = 2,699,285,726.72/70,077.80
  6. Step 6: Final answer
    x = 38,518.41

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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.