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Finding the Fourth Proportional to 70,520.46, 105,681.24 and 38,944.74

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Solution

The fourth proportional to 70,520.46, 105,681.24 and 38,944.74 is: 58,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,520.46 : 105,681.24 = 38,944.74 : x
  2. Step 2: Convert to fraction form
    70,520.46/105,681.24 = 38,944.74/x
  3. Step 3: Cross multiply
    70,520.46x = 105,681.24 × 38,944.74
  4. Step 4: Simplify right side
    70,520.46x = 4,115,728,414.68
  5. Step 5: Solve for x
    x = 4,115,728,414.68/70,520.46
  6. Step 6: Final answer
    x = 58,362.19

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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.