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Finding the Fourth Proportional to 70,896.53, 97,839.02 and 39,065.45

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Solution

The fourth proportional to 70,896.53, 97,839.02 and 39,065.45 is: 53,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,896.53 : 97,839.02 = 39,065.45 : x
  2. Step 2: Convert to fraction form
    70,896.53/97,839.02 = 39,065.45/x
  3. Step 3: Cross multiply
    70,896.53x = 97,839.02 × 39,065.45
  4. Step 4: Simplify right side
    70,896.53x = 3,822,124,952.33
  5. Step 5: Solve for x
    x = 3,822,124,952.33/70,896.53
  6. Step 6: Final answer
    x = 53,911.31

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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.