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Finding the Fourth Proportional to 70,635.76, 105,953.46 and 23,921.44

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Solution

The fourth proportional to 70,635.76, 105,953.46 and 23,921.44 is: 35,882.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,635.76 : 105,953.46 = 23,921.44 : x
  2. Step 2: Convert to fraction form
    70,635.76/105,953.46 = 23,921.44/x
  3. Step 3: Cross multiply
    70,635.76x = 105,953.46 × 23,921.44
  4. Step 4: Simplify right side
    70,635.76x = 2,534,559,336.18
  5. Step 5: Solve for x
    x = 2,534,559,336.18/70,635.76
  6. Step 6: Final answer
    x = 35,882.10

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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.