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Finding the Fourth Proportional to 70,450.89, 97,222.44 and 38,621.80

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Solution

The fourth proportional to 70,450.89, 97,222.44 and 38,621.80 is: 53,298.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,450.89 : 97,222.44 = 38,621.80 : x
  2. Step 2: Convert to fraction form
    70,450.89/97,222.44 = 38,621.80/x
  3. Step 3: Cross multiply
    70,450.89x = 97,222.44 × 38,621.80
  4. Step 4: Simplify right side
    70,450.89x = 3,754,905,633.19
  5. Step 5: Solve for x
    x = 3,754,905,633.19/70,450.89
  6. Step 6: Final answer
    x = 53,298.20

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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.