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Finding the Fourth Proportional to 70,589.98, 105,859.68 and 25,599.97

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Solution

The fourth proportional to 70,589.98, 105,859.68 and 25,599.97 is: 38,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,589.98 : 105,859.68 = 25,599.97 : x
  2. Step 2: Convert to fraction form
    70,589.98/105,859.68 = 25,599.97/x
  3. Step 3: Cross multiply
    70,589.98x = 105,859.68 × 25,599.97
  4. Step 4: Simplify right side
    70,589.98x = 2,710,005,182.26
  5. Step 5: Solve for x
    x = 2,710,005,182.26/70,589.98
  6. Step 6: Final answer
    x = 38,390.79

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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.