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Finding the Fourth Proportional to 70,737.58, 106,106.34 and 23,990.86

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Solution

The fourth proportional to 70,737.58, 106,106.34 and 23,990.86 is: 35,986.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,737.58 : 106,106.34 = 23,990.86 : x
  2. Step 2: Convert to fraction form
    70,737.58/106,106.34 = 23,990.86/x
  3. Step 3: Cross multiply
    70,737.58x = 106,106.34 × 23,990.86
  4. Step 4: Simplify right side
    70,737.58x = 2,545,582,348.05
  5. Step 5: Solve for x
    x = 2,545,582,348.05/70,737.58
  6. Step 6: Final answer
    x = 35,986.28

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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.