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Finding the Fourth Proportional to 70,775.56, 97,667.33 and 38,510.30

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Solution

The fourth proportional to 70,775.56, 97,667.33 and 38,510.30 is: 53,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,775.56 : 97,667.33 = 38,510.30 : x
  2. Step 2: Convert to fraction form
    70,775.56/97,667.33 = 38,510.30/x
  3. Step 3: Cross multiply
    70,775.56x = 97,667.33 × 38,510.30
  4. Step 4: Simplify right side
    70,775.56x = 3,761,198,252.45
  5. Step 5: Solve for x
    x = 3,761,198,252.45/70,775.56
  6. Step 6: Final answer
    x = 53,142.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.