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Finding the Fourth Proportional to 70,334.16, 105,467.22 and 25,981.80

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Solution

The fourth proportional to 70,334.16, 105,467.22 and 25,981.80 is: 38,960.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,334.16 : 105,467.22 = 25,981.80 : x
  2. Step 2: Convert to fraction form
    70,334.16/105,467.22 = 25,981.80/x
  3. Step 3: Cross multiply
    70,334.16x = 105,467.22 × 25,981.80
  4. Step 4: Simplify right side
    70,334.16x = 2,740,228,216.60
  5. Step 5: Solve for x
    x = 2,740,228,216.60/70,334.16
  6. Step 6: Final answer
    x = 38,960.13

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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.