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Finding the Fourth Proportional to 70,393.17, 105,624.45 and 32,955.78

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Solution

The fourth proportional to 70,393.17, 105,624.45 and 32,955.78 is: 49,449.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,393.17 : 105,624.45 = 32,955.78 : x
  2. Step 2: Convert to fraction form
    70,393.17/105,624.45 = 32,955.78/x
  3. Step 3: Cross multiply
    70,393.17x = 105,624.45 × 32,955.78
  4. Step 4: Simplify right side
    70,393.17x = 3,480,936,136.82
  5. Step 5: Solve for x
    x = 3,480,936,136.82/70,393.17
  6. Step 6: Final answer
    x = 49,449.91

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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.