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Finding the Fourth Proportional to 70,893.21, 97,846.75 and 40,698.93

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Solution

The fourth proportional to 70,893.21, 97,846.75 and 40,698.93 is: 56,172.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,893.21 : 97,846.75 = 40,698.93 : x
  2. Step 2: Convert to fraction form
    70,893.21/97,846.75 = 40,698.93/x
  3. Step 3: Cross multiply
    70,893.21x = 97,846.75 × 40,698.93
  4. Step 4: Simplify right side
    70,893.21x = 3,982,258,028.98
  5. Step 5: Solve for x
    x = 3,982,258,028.98/70,893.21
  6. Step 6: Final answer
    x = 56,172.63

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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.