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Finding the Fourth Proportional to 70,313.17, 105,483.86 and 25,940.15

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Solution

The fourth proportional to 70,313.17, 105,483.86 and 25,940.15 is: 38,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,313.17 : 105,483.86 = 25,940.15 : x
  2. Step 2: Convert to fraction form
    70,313.17/105,483.86 = 25,940.15/x
  3. Step 3: Cross multiply
    70,313.17x = 105,483.86 × 25,940.15
  4. Step 4: Simplify right side
    70,313.17x = 2,736,267,150.98
  5. Step 5: Solve for x
    x = 2,736,267,150.98/70,313.17
  6. Step 6: Final answer
    x = 38,915.43

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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.