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Finding the Fourth Proportional to 70,763.92, 106,113.08 and 26,378.76

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Solution

The fourth proportional to 70,763.92, 106,113.08 and 26,378.76 is: 39,555.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,763.92 : 106,113.08 = 26,378.76 : x
  2. Step 2: Convert to fraction form
    70,763.92/106,113.08 = 26,378.76/x
  3. Step 3: Cross multiply
    70,763.92x = 106,113.08 × 26,378.76
  4. Step 4: Simplify right side
    70,763.92x = 2,799,131,470.18
  5. Step 5: Solve for x
    x = 2,799,131,470.18/70,763.92
  6. Step 6: Final answer
    x = 39,555.91

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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.