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Finding the Fourth Proportional to 70,378.44, 97,118.61 and 38,541.21

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Solution

The fourth proportional to 70,378.44, 97,118.61 and 38,541.21 is: 53,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,378.44 : 97,118.61 = 38,541.21 : x
  2. Step 2: Convert to fraction form
    70,378.44/97,118.61 = 38,541.21/x
  3. Step 3: Cross multiply
    70,378.44x = 97,118.61 × 38,541.21
  4. Step 4: Simplify right side
    70,378.44x = 3,743,068,742.92
  5. Step 5: Solve for x
    x = 3,743,068,742.92/70,378.44
  6. Step 6: Final answer
    x = 53,184.88

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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.