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Finding the Fourth Proportional to 70,896.21, 97,850.89 and 40,701.93

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Solution

The fourth proportional to 70,896.21, 97,850.89 and 40,701.93 is: 56,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,896.21 : 97,850.89 = 40,701.93 : x
  2. Step 2: Convert to fraction form
    70,896.21/97,850.89 = 40,701.93/x
  3. Step 3: Cross multiply
    70,896.21x = 97,850.89 × 40,701.93
  4. Step 4: Simplify right side
    70,896.21x = 3,982,720,075.22
  5. Step 5: Solve for x
    x = 3,982,720,075.22/70,896.21
  6. Step 6: Final answer
    x = 56,176.77

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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.