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Finding the Fourth Proportional to 70,255.76, 105,334.38 and 25,876.76

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Solution

The fourth proportional to 70,255.76, 105,334.38 and 25,876.76 is: 38,797.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,255.76 : 105,334.38 = 25,876.76 : x
  2. Step 2: Convert to fraction form
    70,255.76/105,334.38 = 25,876.76/x
  3. Step 3: Cross multiply
    70,255.76x = 105,334.38 × 25,876.76
  4. Step 4: Simplify right side
    70,255.76x = 2,725,712,471.01
  5. Step 5: Solve for x
    x = 2,725,712,471.01/70,255.76
  6. Step 6: Final answer
    x = 38,797.00

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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.