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Finding the Fourth Proportional to 70,416.90, 105,603.30 and 23,658.84

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Solution

The fourth proportional to 70,416.90, 105,603.30 and 23,658.84 is: 35,480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,416.90 : 105,603.30 = 23,658.84 : x
  2. Step 2: Convert to fraction form
    70,416.90/105,603.30 = 23,658.84/x
  3. Step 3: Cross multiply
    70,416.90x = 105,603.30 × 23,658.84
  4. Step 4: Simplify right side
    70,416.90x = 2,498,451,578.17
  5. Step 5: Solve for x
    x = 2,498,451,578.17/70,416.90
  6. Step 6: Final answer
    x = 35,480.85

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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.