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Finding the Fourth Proportional to 70,576.20, 105,864.30 and 35,584.20

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Solution

The fourth proportional to 70,576.20, 105,864.30 and 35,584.20 is: 53,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,576.20 : 105,864.30 = 35,584.20 : x
  2. Step 2: Convert to fraction form
    70,576.20/105,864.30 = 35,584.20/x
  3. Step 3: Cross multiply
    70,576.20x = 105,864.30 × 35,584.20
  4. Step 4: Simplify right side
    70,576.20x = 3,767,096,424.06
  5. Step 5: Solve for x
    x = 3,767,096,424.06/70,576.20
  6. Step 6: Final answer
    x = 53,376.30

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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.