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Finding the Fourth Proportional to 70,453.56, 97,225.92 and 38,621.78

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Solution

The fourth proportional to 70,453.56, 97,225.92 and 38,621.78 is: 53,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,453.56 : 97,225.92 = 38,621.78 : x
  2. Step 2: Convert to fraction form
    70,453.56/97,225.92 = 38,621.78/x
  3. Step 3: Cross multiply
    70,453.56x = 97,225.92 × 38,621.78
  4. Step 4: Simplify right side
    70,453.56x = 3,755,037,606.41
  5. Step 5: Solve for x
    x = 3,755,037,606.41/70,453.56
  6. Step 6: Final answer
    x = 53,298.05

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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.