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Finding the Fourth Proportional to 70,180.64, 96,845.76 and 38,343.68

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Solution

The fourth proportional to 70,180.64, 96,845.76 and 38,343.68 is: 52,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,180.64 : 96,845.76 = 38,343.68 : x
  2. Step 2: Convert to fraction form
    70,180.64/96,845.76 = 38,343.68/x
  3. Step 3: Cross multiply
    70,180.64x = 96,845.76 × 38,343.68
  4. Step 4: Simplify right side
    70,180.64x = 3,713,422,830.80
  5. Step 5: Solve for x
    x = 3,713,422,830.80/70,180.64
  6. Step 6: Final answer
    x = 52,912.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.