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Finding the Fourth Proportional to 70,449.74, 105,688.44 and 26,076.88

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Solution

The fourth proportional to 70,449.74, 105,688.44 and 26,076.88 is: 39,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,449.74 : 105,688.44 = 26,076.88 : x
  2. Step 2: Convert to fraction form
    70,449.74/105,688.44 = 26,076.88/x
  3. Step 3: Cross multiply
    70,449.74x = 105,688.44 × 26,076.88
  4. Step 4: Simplify right side
    70,449.74x = 2,756,024,767.27
  5. Step 5: Solve for x
    x = 2,756,024,767.27/70,449.74
  6. Step 6: Final answer
    x = 39,120.44

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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.