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Finding the Fourth Proportional to 70,616.67, 97,467.81 and 40,419.42

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Solution

The fourth proportional to 70,616.67, 97,467.81 and 40,419.42 is: 55,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,616.67 : 97,467.81 = 40,419.42 : x
  2. Step 2: Convert to fraction form
    70,616.67/97,467.81 = 40,419.42/x
  3. Step 3: Cross multiply
    70,616.67x = 97,467.81 × 40,419.42
  4. Step 4: Simplify right side
    70,616.67x = 3,939,592,348.87
  5. Step 5: Solve for x
    x = 3,939,592,348.87/70,616.67
  6. Step 6: Final answer
    x = 55,788.42

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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.