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Finding the Fourth Proportional to 70,498.75, 105,768.39 and 34,970.95

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Solution

The fourth proportional to 70,498.75, 105,768.39 and 34,970.95 is: 52,466.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,498.75 : 105,768.39 = 34,970.95 : x
  2. Step 2: Convert to fraction form
    70,498.75/105,768.39 = 34,970.95/x
  3. Step 3: Cross multiply
    70,498.75x = 105,768.39 × 34,970.95
  4. Step 4: Simplify right side
    70,498.75x = 3,698,821,078.27
  5. Step 5: Solve for x
    x = 3,698,821,078.27/70,498.75
  6. Step 6: Final answer
    x = 52,466.48

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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.