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Finding the Fourth Proportional to 70,224.76, 105,378.74 and 25,882.66

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Solution

The fourth proportional to 70,224.76, 105,378.74 and 25,882.66 is: 38,839.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,224.76 : 105,378.74 = 25,882.66 : x
  2. Step 2: Convert to fraction form
    70,224.76/105,378.74 = 25,882.66/x
  3. Step 3: Cross multiply
    70,224.76x = 105,378.74 × 25,882.66
  4. Step 4: Simplify right side
    70,224.76x = 2,727,481,442.34
  5. Step 5: Solve for x
    x = 2,727,481,442.34/70,224.76
  6. Step 6: Final answer
    x = 38,839.32

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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.