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Finding the Fourth Proportional to 70,232.22, 105,389.88 and 25,890.12

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Solution

The fourth proportional to 70,232.22, 105,389.88 and 25,890.12 is: 38,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,232.22 : 105,389.88 = 25,890.12 : x
  2. Step 2: Convert to fraction form
    70,232.22/105,389.88 = 25,890.12/x
  3. Step 3: Cross multiply
    70,232.22x = 105,389.88 × 25,890.12
  4. Step 4: Simplify right side
    70,232.22x = 2,728,556,639.99
  5. Step 5: Solve for x
    x = 2,728,556,639.99/70,232.22
  6. Step 6: Final answer
    x = 38,850.50

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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.